3x+4=x-72

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Solution for 3x+4=x-72 equation: 



3x+4=x-72

We move all terms to the left:

3x+4-(x-72)=0

We get rid of parentheses

3x-x+72+4=0

We add all the numbers together, and all the variables

2x+76=0

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

2x=-76

x=-76/2

x=-38

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