4=-2(7-z)

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Solution for 4=-2(7-z) equation:


4=-2(7-z)

We simplify the equation to the form, which is simple to understand 
4=-2(7-z)

Reorder the terms in parentheses
4=+(-14+2z)

Remove unnecessary parentheses
+4=-14+2z

We move all terms containing z to the left and all other terms to the right. 
-2z=-14-4

We simplify left and right side of the equation. 
-2z=-18

We divide both sides of the equation by -02 to get z. 
z=9

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