7(3-z)+2z=-9

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Solution for 7(3-z)+2z=-9 equation:


7(3-z)+2z=-9

We simplify the equation to the form, which is simple to understand 
7(3-z)+2z=-9

Reorder the terms in parentheses
+(+21-7z)+2z=-9

Remove unnecessary parentheses
+21-7z+2z=-9

We move all terms containing z to the left and all other terms to the right. 
-7z+2z=-9-21

We simplify left and right side of the equation. 
-5z=-30

We divide both sides of the equation by -5 to get z. 
z=6

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