4x+8x-40=100-8x

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Solution for 4x+8x-40=100-8x equation: 



4x+8x-40=100-8x

We move all terms to the left:

4x+8x-40-(100-8x)=0

We add all the numbers together, and all the variables

4x+8x-(-8x+100)-40=0

We add all the numbers together, and all the variables

12x-(-8x+100)-40=0

We get rid of parentheses

12x+8x-100-40=0

We add all the numbers together, and all the variables

20x-140=0

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

20x=140

x=140/20

x=7

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