18+7x=81

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Solution for 18+7x=81 equation:



18+7x=81
We move all terms to the left:
18+7x-(81)=0
We add all the numbers together, and all the variables
7x-63=0
We move all terms containing x to the left, all other terms to the right
7x=63
x=63/7
x=9

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