1x-20=-3x-12

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Solution for 1x-20=-3x-12 equation: 



1x-20=-3x-12

We move all terms to the left:

1x-20-(-3x-12)=0

We add all the numbers together, and all the variables

x-(-3x-12)-20=0

We get rid of parentheses

x+3x+12-20=0

We add all the numbers together, and all the variables

4x-8=0

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

4x=8

x=8/4

x=2

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