Solve for y
y=\frac{-z-7}{2}
Solve for z
z=-2y-7
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-4y-2z=14
Add 14 to both sides. Anything plus zero gives itself.
-4y=14+2z
Add 2z to both sides.
-4y=2z+14
The equation is in standard form.
\frac{-4y}{-4}=\frac{2z+14}{-4}
Divide both sides by -4.
y=\frac{2z+14}{-4}
Dividing by -4 undoes the multiplication by -4.
y=\frac{-z-7}{2}
Divide 14+2z by -4.
-14-2z=4y
Add 4y to both sides. Anything plus zero gives itself.
-2z=4y+14
Add 14 to both sides.
\frac{-2z}{-2}=\frac{4y+14}{-2}
Divide both sides by -2.
z=\frac{4y+14}{-2}
Dividing by -2 undoes the multiplication by -2.
z=-2y-7
Divide 4y+14 by -2.
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