12+7(2x-5x)=-30

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Solution for 12+7(2x-5x)=-30 equation:


12+7(2x-5x)=-30

We simplify the equation to the form, which is simple to understand 
12+7(2x-5x)=-30

Simplifying terms in parentheses
12+7*(-3x)=-30

Reorder the terms in parentheses
12+(-21x)=-30

Remove unnecessary parentheses
+12-21x=-30

We move all terms containing x to the left and all other terms to the right. 
-21x=-30-12

We simplify left and right side of the equation. 
-21x=-42

We divide both sides of the equation by -21 to get x. 
x=2

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