Rewrite the equation as .

Subtract from both sides of the equation.

Subtract from .

Multiply both sides of the equation by .

Cancel the common factor of .

Cancel the common factor.

Rewrite the expression.

Multiply by .

Solve for z 10=z/2+7

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# Solve for z 10=z/2+7

Rewrite the equation as .

Subtract from both sides of the equation.

Subtract from .

Multiply both sides of the equation by .

Cancel the common factor of .

Cancel the common factor.

Rewrite the expression.

Multiply by .

Solve for z 10=z/2+7