7x-39=42

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Solution for 7x-39=42 equation:



7x-39=42
We move all terms to the left:
7x-39-(42)=0
We add all the numbers together, and all the variables
7x-81=0
We move all terms containing x to the left, all other terms to the right
7x=81
x=81/7
x=11+4/7

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