5x+7x-4=4x-20=

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Solution for 5x+7x-4=4x-20= equation: 



5x+7x-4=4x-20=

We move all terms to the left:

5x+7x-4-(4x-20)=0

We add all the numbers together, and all the variables

12x-(4x-20)-4=0

We get rid of parentheses

12x-4x+20-4=0

We add all the numbers together, and all the variables

8x+16=0

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

8x=-16

x=-16/8

x=-2

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