Solve for a
a=-\frac{7z}{16}
Solve for z
z=-\frac{16a}{7}
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-7z=16a
Calculate -4 to the power of 2 and get 16.
16a=-7z
Swap sides so that all variable terms are on the left hand side.
\frac{16a}{16}=-\frac{7z}{16}
Divide both sides by 16.
a=-\frac{7z}{16}
Dividing by 16 undoes the multiplication by 16.
-7z=16a
Calculate -4 to the power of 2 and get 16.
\frac{-7z}{-7}=\frac{16a}{-7}
Divide both sides by -7.
z=\frac{16a}{-7}
Dividing by -7 undoes the multiplication by -7.
z=-\frac{16a}{7}
Divide 16a by -7.
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Limits
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