12+8-4x=-20

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Solution for 12+8-4x=-20 equation:


12+8-4x=-20

We simplify the equation to the form, which is simple to understand 
12+8-4x=-20

We move all terms containing x to the left and all other terms to the right. 
-4x=-20-12-8

We simplify left and right side of the equation. 
-4x=-40

We divide both sides of the equation by -4 to get x. 
x=10

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