3(x+2x)=8x-9

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Solution for 3(x+2x)=8x-9 equation: 



3(x+2x)=8x-9

We move all terms to the left:

3(x+2x)-(8x-9)=0

We add all the numbers together, and all the variables

3(+3x)-(8x-9)=0

We multiply parentheses

9x-(8x-9)=0

We get rid of parentheses

9x-8x+9=0

We add all the numbers together, and all the variables

x+9=0

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

x=-9

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