Solve for x
x = \frac{7}{2} = 3\frac{1}{2} = 3.5
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Quiz
Linear Equation
5 problems similar to:
2 - \{ 18 x - 2 - [ 4 x - 3 + ( 8 x - 2 ) ] + 3 \} = 8 - 33
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2-\left(18x-2-\left(12x-3-2\right)+3\right)=8-33
Combine 4x and 8x to get 12x.
2-\left(18x-2-\left(12x-5\right)+3\right)=8-33
Subtract 2 from -3 to get -5.
2-\left(18x-2-12x-\left(-5\right)+3\right)=8-33
To find the opposite of 12x-5, find the opposite of each term.
2-\left(18x-2-12x+5+3\right)=8-33
The opposite of -5 is 5.
2-\left(6x-2+5+3\right)=8-33
Combine 18x and -12x to get 6x.
2-\left(6x+3+3\right)=8-33
Add -2 and 5 to get 3.
2-\left(6x+6\right)=8-33
Add 3 and 3 to get 6.
2-6x-6=8-33
To find the opposite of 6x+6, find the opposite of each term.
-4-6x=8-33
Subtract 6 from 2 to get -4.
-4-6x=-25
Subtract 33 from 8 to get -25.
-6x=-25+4
Add 4 to both sides.
-6x=-21
Add -25 and 4 to get -21.
x=\frac{-21}{-6}
Divide both sides by -6.
x=\frac{7}{2}
Reduce the fraction \frac{-21}{-6} to lowest terms by extracting and canceling out -3.
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y = 3x + 4
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Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
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\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}