Solve for m
m=\frac{109-11z}{18}
Solve for z
z=\frac{109-18m}{11}
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z=\frac{109}{11}-\frac{18}{11}m
Divide each term of 218-36m by 22 to get \frac{109}{11}-\frac{18}{11}m.
\frac{109}{11}-\frac{18}{11}m=z
Swap sides so that all variable terms are on the left hand side.
-\frac{18}{11}m=z-\frac{109}{11}
Subtract \frac{109}{11} from both sides.
\frac{-\frac{18}{11}m}{-\frac{18}{11}}=\frac{z-\frac{109}{11}}{-\frac{18}{11}}
Divide both sides of the equation by -\frac{18}{11}, which is the same as multiplying both sides by the reciprocal of the fraction.
m=\frac{z-\frac{109}{11}}{-\frac{18}{11}}
Dividing by -\frac{18}{11} undoes the multiplication by -\frac{18}{11}.
m=\frac{109-11z}{18}
Divide z-\frac{109}{11} by -\frac{18}{11} by multiplying z-\frac{109}{11} by the reciprocal of -\frac{18}{11}.
z=\frac{109}{11}-\frac{18}{11}m
Divide each term of 218-36m by 22 to get \frac{109}{11}-\frac{18}{11}m.
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