Solve for z
z=\frac{x-6}{6}
Solve for x
x=6\left(z+1\right)
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6z=x-6
Swap sides so that all variable terms are on the left hand side.
\frac{6z}{6}=\frac{x-6}{6}
Divide both sides by 6.
z=\frac{x-6}{6}
Dividing by 6 undoes the multiplication by 6.
z=\frac{x}{6}-1
Divide x-6 by 6.
x=6z+6
Add 6 to both sides.
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