7x=3x-72

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Solution for 7x=3x-72 equation: 



7x=3x-72

We move all terms to the left:

7x-(3x-72)=0

We get rid of parentheses

7x-3x+72=0

We add all the numbers together, and all the variables

4x+72=0

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

4x=-72

x=-72/4

x=-18

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