3z+12-9z=-30

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Solution for 3z+12-9z=-30 equation:


3z+12-9z=-30

We simplify the equation to the form, which is simple to understand 
3z+12-9z=-30

We move all terms containing z to the left and all other terms to the right. 
+3z-9z=-30-12

We simplify left and right side of the equation. 
-6z=-42

We divide both sides of the equation by -6 to get z. 
z=7

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