Solve for y
y=7
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4y-28-\left(y+5\right)=2\left(1-y\right)
Use the distributive property to multiply 4 by y-7.
4y-28-y-5=2\left(1-y\right)
To find the opposite of y+5, find the opposite of each term.
3y-28-5=2\left(1-y\right)
Combine 4y and -y to get 3y.
3y-33=2\left(1-y\right)
Subtract 5 from -28 to get -33.
3y-33=2-2y
Use the distributive property to multiply 2 by 1-y.
3y-33+2y=2
Add 2y to both sides.
5y-33=2
Combine 3y and 2y to get 5y.
5y=2+33
Add 33 to both sides.
5y=35
Add 2 and 33 to get 35.
y=\frac{35}{5}
Divide both sides by 5.
y=7
Divide 35 by 5 to get 7.
Examples
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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
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