Solve for z
z = \frac{78}{7} = 11\frac{1}{7} \approx 11.142857143
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-3\left(-26\right)=7z
Subtract 22 from -4 to get -26.
78=7z
Multiply -3 and -26 to get 78.
7z=78
Swap sides so that all variable terms are on the left hand side.
z=\frac{78}{7}
Divide both sides by 7.
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