9x-129=4x+12

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Solution for 9x-129=4x+12 equation:



9x-129=4x+12
We move all terms to the left:
9x-129-(4x+12)=0
We get rid of parentheses
9x-4x-12-129=0
We add all the numbers together, and all the variables
5x-141=0
We move all terms containing x to the left, all other terms to the right
5x=141
x=141/5
x=28+1/5

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