Solve for x
x=\frac{y-19}{4}
Solve for y
y=4x+19
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4x=-19+y
Add y to both sides.
4x=y-19
The equation is in standard form.
\frac{4x}{4}=\frac{y-19}{4}
Divide both sides by 4.
x=\frac{y-19}{4}
Dividing by 4 undoes the multiplication by 4.
-y=-19-4x
Subtract 4x from both sides.
-y=-4x-19
The equation is in standard form.
\frac{-y}{-1}=\frac{-4x-19}{-1}
Divide both sides by -1.
y=\frac{-4x-19}{-1}
Dividing by -1 undoes the multiplication by -1.
y=4x+19
Divide -19-4x by -1.
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