Solve for y
y = \frac{23}{10} = 2\frac{3}{10} = 2.3
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3-y=\frac{3}{4}\times 2y+\frac{3}{4}\left(-1\right)-2
Use the distributive property to multiply \frac{3}{4} by 2y-1.
3-y=\frac{3\times 2}{4}y+\frac{3}{4}\left(-1\right)-2
Express \frac{3}{4}\times 2 as a single fraction.
3-y=\frac{6}{4}y+\frac{3}{4}\left(-1\right)-2
Multiply 3 and 2 to get 6.
3-y=\frac{3}{2}y+\frac{3}{4}\left(-1\right)-2
Reduce the fraction \frac{6}{4} to lowest terms by extracting and canceling out 2.
3-y=\frac{3}{2}y-\frac{3}{4}-2
Multiply \frac{3}{4} and -1 to get -\frac{3}{4}.
3-y=\frac{3}{2}y-\frac{3}{4}-\frac{8}{4}
Convert 2 to fraction \frac{8}{4}.
3-y=\frac{3}{2}y+\frac{-3-8}{4}
Since -\frac{3}{4} and \frac{8}{4} have the same denominator, subtract them by subtracting their numerators.
3-y=\frac{3}{2}y-\frac{11}{4}
Subtract 8 from -3 to get -11.
3-y-\frac{3}{2}y=-\frac{11}{4}
Subtract \frac{3}{2}y from both sides.
3-\frac{5}{2}y=-\frac{11}{4}
Combine -y and -\frac{3}{2}y to get -\frac{5}{2}y.
-\frac{5}{2}y=-\frac{11}{4}-3
Subtract 3 from both sides.
-\frac{5}{2}y=-\frac{11}{4}-\frac{12}{4}
Convert 3 to fraction \frac{12}{4}.
-\frac{5}{2}y=\frac{-11-12}{4}
Since -\frac{11}{4} and \frac{12}{4} have the same denominator, subtract them by subtracting their numerators.
-\frac{5}{2}y=-\frac{23}{4}
Subtract 12 from -11 to get -23.
y=-\frac{23}{4}\left(-\frac{2}{5}\right)
Multiply both sides by -\frac{2}{5}, the reciprocal of -\frac{5}{2}.
y=\frac{-23\left(-2\right)}{4\times 5}
Multiply -\frac{23}{4} times -\frac{2}{5} by multiplying numerator times numerator and denominator times denominator.
y=\frac{46}{20}
Do the multiplications in the fraction \frac{-23\left(-2\right)}{4\times 5}.
y=\frac{23}{10}
Reduce the fraction \frac{46}{20} to lowest terms by extracting and canceling out 2.
Examples
Quadratic equation
{ 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}