9x/2+12=21

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Solution for 9x/2+12=21 equation:



9x/2+12=21
We move all terms to the left:
9x/2+12-(21)=0
We add all the numbers together, and all the variables
9x/2-9=0
We multiply all the terms by the denominator
9x-9*2=0
We add all the numbers together, and all the variables
9x-18=0
We move all terms containing x to the left, all other terms to the right
9x=18
x=18/9
x=2

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