Solve for y
y = -\frac{19}{2} = -9\frac{1}{2} = -9.5
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4\left(2y-1\right)=5\left(1\times 4+3\right)-10\left(2-y\right)
Multiply both sides of the equation by 20, the least common multiple of 5,4,2.
8y-4=5\left(1\times 4+3\right)-10\left(2-y\right)
Use the distributive property to multiply 4 by 2y-1.
8y-4=5\left(4+3\right)-10\left(2-y\right)
Multiply 1 and 4 to get 4.
8y-4=5\times 7-10\left(2-y\right)
Add 4 and 3 to get 7.
8y-4=35-10\left(2-y\right)
Multiply 5 and 7 to get 35.
8y-4=35-20+10y
Use the distributive property to multiply -10 by 2-y.
8y-4=15+10y
Subtract 20 from 35 to get 15.
8y-4-10y=15
Subtract 10y from both sides.
-2y-4=15
Combine 8y and -10y to get -2y.
-2y=15+4
Add 4 to both sides.
-2y=19
Add 15 and 4 to get 19.
y=\frac{19}{-2}
Divide both sides by -2.
y=-\frac{19}{2}
Fraction \frac{19}{-2} can be rewritten as -\frac{19}{2} by extracting the negative sign.
Examples
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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}