Subtract from both sides of the equation.

Subtract from .

Add to both sides of the equation.

Add and .

Divide each term in by .

Cancel the common factor of .

Divide by .

Solve for z 0.8z-0.4=-4+z

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# Solve for z 0.8z-0.4=-4+z

Subtract from both sides of the equation.

Subtract from .

Add to both sides of the equation.

Add and .

Divide each term in by .

Cancel the common factor of .

Divide by .

Solve for z 0.8z-0.4=-4+z