Solve for y
y=7
Graph
Share
Copied to clipboard
2-\left(\frac{1}{4}-\frac{3}{4}y\right)=y
Divide each term of 1-3y by 4 to get \frac{1}{4}-\frac{3}{4}y.
2-\frac{1}{4}-\left(-\frac{3}{4}y\right)=y
To find the opposite of \frac{1}{4}-\frac{3}{4}y, find the opposite of each term.
2-\frac{1}{4}+\frac{3}{4}y=y
The opposite of -\frac{3}{4}y is \frac{3}{4}y.
\frac{8}{4}-\frac{1}{4}+\frac{3}{4}y=y
Convert 2 to fraction \frac{8}{4}.
\frac{8-1}{4}+\frac{3}{4}y=y
Since \frac{8}{4} and \frac{1}{4} have the same denominator, subtract them by subtracting their numerators.
\frac{7}{4}+\frac{3}{4}y=y
Subtract 1 from 8 to get 7.
\frac{7}{4}+\frac{3}{4}y-y=0
Subtract y from both sides.
\frac{7}{4}-\frac{1}{4}y=0
Combine \frac{3}{4}y and -y to get -\frac{1}{4}y.
-\frac{1}{4}y=-\frac{7}{4}
Subtract \frac{7}{4} from both sides. Anything subtracted from zero gives its negation.
y=-\frac{7}{4}\left(-4\right)
Multiply both sides by -4, the reciprocal of -\frac{1}{4}.
y=\frac{-7\left(-4\right)}{4}
Express -\frac{7}{4}\left(-4\right) as a single fraction.
y=\frac{28}{4}
Multiply -7 and -4 to get 28.
y=7
Divide 28 by 4 to get 7.
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}