7x-20=4x-8=180

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Solution for 7x-20=4x-8=180 equation: 



7x-20=4x-8=180

We move all terms to the left:

7x-20-(4x-8)=0

We get rid of parentheses

7x-4x+8-20=0

We add all the numbers together, and all the variables

3x-12=0

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

3x=12

x=12/3

x=4

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