Solve for x
x=\frac{y+60}{4}
Solve for y
y=4\left(x-15\right)
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4x-y-4=56
Combine 3x and x to get 4x.
4x-4=56+y
Add y to both sides.
4x=56+y+4
Add 4 to both sides.
4x=60+y
Add 56 and 4 to get 60.
4x=y+60
The equation is in standard form.
\frac{4x}{4}=\frac{y+60}{4}
Divide both sides by 4.
x=\frac{y+60}{4}
Dividing by 4 undoes the multiplication by 4.
x=\frac{y}{4}+15
Divide 60+y by 4.
4x-y-4=56
Combine 3x and x to get 4x.
-y-4=56-4x
Subtract 4x from both sides.
-y=56-4x+4
Add 4 to both sides.
-y=60-4x
Add 56 and 4 to get 60.
\frac{-y}{-1}=\frac{60-4x}{-1}
Divide both sides by -1.
y=\frac{60-4x}{-1}
Dividing by -1 undoes the multiplication by -1.
y=4x-60
Divide 60-4x by -1.
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