Solve for x
x=\frac{17-y}{4}
Solve for y
y=17-4x
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16x+4y=68
Multiply both sides of the equation by 4.
16x=68-4y
Subtract 4y from both sides.
\frac{16x}{16}=\frac{68-4y}{16}
Divide both sides by 16.
x=\frac{68-4y}{16}
Dividing by 16 undoes the multiplication by 16.
x=\frac{17-y}{4}
Divide 68-4y by 16.
16x+4y=68
Multiply both sides of the equation by 4.
4y=68-16x
Subtract 16x from both sides.
\frac{4y}{4}=\frac{68-16x}{4}
Divide both sides by 4.
y=\frac{68-16x}{4}
Dividing by 4 undoes the multiplication by 4.
y=17-4x
Divide 68-16x by 4.
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