Solve for y
y=2
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5\left(13+4y\right)-42y=21
Multiply both sides of the equation by 7.
65+20y-42y=21
Use the distributive property to multiply 5 by 13+4y.
65-22y=21
Combine 20y and -42y to get -22y.
-22y=21-65
Subtract 65 from both sides.
-22y=-44
Subtract 65 from 21 to get -44.
y=\frac{-44}{-22}
Divide both sides by -22.
y=2
Divide -44 by -22 to get 2.
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