Evaluate
-42
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-42
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-3.96+\frac{3\times 6+5}{6}-\frac{5\times 7+1}{7}+\frac{2\times 6+1}{6}-7.61-\frac{32\times 7+6}{7}+1.57
Subtract 1.57 from -2.39 to get -3.96.
-3.96+\frac{18+5}{6}-\frac{5\times 7+1}{7}+\frac{2\times 6+1}{6}-7.61-\frac{32\times 7+6}{7}+1.57
Multiply 3 and 6 to get 18.
-3.96+\frac{23}{6}-\frac{5\times 7+1}{7}+\frac{2\times 6+1}{6}-7.61-\frac{32\times 7+6}{7}+1.57
Add 18 and 5 to get 23.
-\frac{99}{25}+\frac{23}{6}-\frac{5\times 7+1}{7}+\frac{2\times 6+1}{6}-7.61-\frac{32\times 7+6}{7}+1.57
Convert decimal number -3.96 to fraction -\frac{396}{100}. Reduce the fraction -\frac{396}{100} to lowest terms by extracting and canceling out 4.
-\frac{594}{150}+\frac{575}{150}-\frac{5\times 7+1}{7}+\frac{2\times 6+1}{6}-7.61-\frac{32\times 7+6}{7}+1.57
Least common multiple of 25 and 6 is 150. Convert -\frac{99}{25} and \frac{23}{6} to fractions with denominator 150.
\frac{-594+575}{150}-\frac{5\times 7+1}{7}+\frac{2\times 6+1}{6}-7.61-\frac{32\times 7+6}{7}+1.57
Since -\frac{594}{150} and \frac{575}{150} have the same denominator, add them by adding their numerators.
-\frac{19}{150}-\frac{5\times 7+1}{7}+\frac{2\times 6+1}{6}-7.61-\frac{32\times 7+6}{7}+1.57
Add -594 and 575 to get -19.
-\frac{19}{150}-\frac{35+1}{7}+\frac{2\times 6+1}{6}-7.61-\frac{32\times 7+6}{7}+1.57
Multiply 5 and 7 to get 35.
-\frac{19}{150}-\frac{36}{7}+\frac{2\times 6+1}{6}-7.61-\frac{32\times 7+6}{7}+1.57
Add 35 and 1 to get 36.
-\frac{133}{1050}-\frac{5400}{1050}+\frac{2\times 6+1}{6}-7.61-\frac{32\times 7+6}{7}+1.57
Least common multiple of 150 and 7 is 1050. Convert -\frac{19}{150} and \frac{36}{7} to fractions with denominator 1050.
\frac{-133-5400}{1050}+\frac{2\times 6+1}{6}-7.61-\frac{32\times 7+6}{7}+1.57
Since -\frac{133}{1050} and \frac{5400}{1050} have the same denominator, subtract them by subtracting their numerators.
-\frac{5533}{1050}+\frac{2\times 6+1}{6}-7.61-\frac{32\times 7+6}{7}+1.57
Subtract 5400 from -133 to get -5533.
-\frac{5533}{1050}+\frac{12+1}{6}-7.61-\frac{32\times 7+6}{7}+1.57
Multiply 2 and 6 to get 12.
-\frac{5533}{1050}+\frac{13}{6}-7.61-\frac{32\times 7+6}{7}+1.57
Add 12 and 1 to get 13.
-\frac{5533}{1050}+\frac{2275}{1050}-7.61-\frac{32\times 7+6}{7}+1.57
Least common multiple of 1050 and 6 is 1050. Convert -\frac{5533}{1050} and \frac{13}{6} to fractions with denominator 1050.
\frac{-5533+2275}{1050}-7.61-\frac{32\times 7+6}{7}+1.57
Since -\frac{5533}{1050} and \frac{2275}{1050} have the same denominator, add them by adding their numerators.
\frac{-3258}{1050}-7.61-\frac{32\times 7+6}{7}+1.57
Add -5533 and 2275 to get -3258.
-\frac{543}{175}-7.61-\frac{32\times 7+6}{7}+1.57
Reduce the fraction \frac{-3258}{1050} to lowest terms by extracting and canceling out 6.
-\frac{543}{175}-\frac{761}{100}-\frac{32\times 7+6}{7}+1.57
Convert decimal number 7.61 to fraction \frac{761}{100}.
-\frac{2172}{700}-\frac{5327}{700}-\frac{32\times 7+6}{7}+1.57
Least common multiple of 175 and 100 is 700. Convert -\frac{543}{175} and \frac{761}{100} to fractions with denominator 700.
\frac{-2172-5327}{700}-\frac{32\times 7+6}{7}+1.57
Since -\frac{2172}{700} and \frac{5327}{700} have the same denominator, subtract them by subtracting their numerators.
-\frac{7499}{700}-\frac{32\times 7+6}{7}+1.57
Subtract 5327 from -2172 to get -7499.
-\frac{7499}{700}-\frac{224+6}{7}+1.57
Multiply 32 and 7 to get 224.
-\frac{7499}{700}-\frac{230}{7}+1.57
Add 224 and 6 to get 230.
-\frac{7499}{700}-\frac{23000}{700}+1.57
Least common multiple of 700 and 7 is 700. Convert -\frac{7499}{700} and \frac{230}{7} to fractions with denominator 700.
\frac{-7499-23000}{700}+1.57
Since -\frac{7499}{700} and \frac{23000}{700} have the same denominator, subtract them by subtracting their numerators.
\frac{-30499}{700}+1.57
Subtract 23000 from -7499 to get -30499.
-\frac{4357}{100}+1.57
Reduce the fraction \frac{-30499}{700} to lowest terms by extracting and canceling out 7.
-\frac{4357}{100}+\frac{157}{100}
Convert decimal number 1.57 to fraction \frac{157}{100}.
\frac{-4357+157}{100}
Since -\frac{4357}{100} and \frac{157}{100} have the same denominator, add them by adding their numerators.
\frac{-4200}{100}
Add -4357 and 157 to get -4200.
-42
Divide -4200 by 100 to get -42.
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{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}