3z+5z-12z=25-(-7)

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Solution for 3z+5z-12z=25-(-7) equation:


3z+5z-12z=25-(-7)

We simplify the equation to the form, which is simple to understand 
3z+5z-12z=25-(-7)

Remove unnecessary parentheses
3z+5z-12z=25+7

We move all terms containing z to the left and all other terms to the right. 
+3z+5z-12z=+25+7

We simplify left and right side of the equation. 
-4z=+32

We divide both sides of the equation by -4 to get z. 
z=-8

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