9x+12-2(5+2x)=42

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Solution for 9x+12-2(5+2x)=42 equation: 



9x+12-2(5+2x)=42

We move all terms to the left:

9x+12-2(5+2x)-(42)=0

We add all the numbers together, and all the variables

9x-2(2x+5)+12-42=0

We add all the numbers together, and all the variables

9x-2(2x+5)-30=0

We multiply parentheses

9x-4x-10-30=0

We add all the numbers together, and all the variables

5x-40=0

We move all terms containing x to the left, all other terms to the right

5x=40

x=40/5

x=8

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