Solve for x
x=7-2y
Solve for y
y=\frac{7-x}{2}
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4x-28=-8y
Subtract 8y from both sides. Anything subtracted from zero gives its negation.
4x=-8y+28
Add 28 to both sides.
4x=28-8y
The equation is in standard form.
\frac{4x}{4}=\frac{28-8y}{4}
Divide both sides by 4.
x=\frac{28-8y}{4}
Dividing by 4 undoes the multiplication by 4.
x=7-2y
Divide -8y+28 by 4.
8y-28=-4x
Subtract 4x from both sides. Anything subtracted from zero gives its negation.
8y=-4x+28
Add 28 to both sides.
8y=28-4x
The equation is in standard form.
\frac{8y}{8}=\frac{28-4x}{8}
Divide both sides by 8.
y=\frac{28-4x}{8}
Dividing by 8 undoes the multiplication by 8.
y=\frac{7-x}{2}
Divide -4x+28 by 8.
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