7x+4x-45=75-4x

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Solution for 7x+4x-45=75-4x equation: 



7x+4x-45=75-4x

We move all terms to the left:

7x+4x-45-(75-4x)=0

We add all the numbers together, and all the variables

7x+4x-(-4x+75)-45=0

We add all the numbers together, and all the variables

11x-(-4x+75)-45=0

We get rid of parentheses

11x+4x-75-45=0

We add all the numbers together, and all the variables

15x-120=0

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

15x=120

x=120/15

x=8

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