4x+7=1x-20

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Solution for 4x+7=1x-20 equation: 



4x+7=1x-20

We move all terms to the left:

4x+7-(1x-20)=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

4x-x+20+7=0

We add all the numbers together, and all the variables

3x+27=0

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

3x=-27

x=-27/3

x=-9

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