3x+28=7x-12

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Solution for 3x+28=7x-12 equation: 



3x+28=7x-12

We move all terms to the left:

3x+28-(7x-12)=0

We get rid of parentheses

3x-7x+12+28=0

We add all the numbers together, and all the variables

-4x+40=0

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

-4x=-40

x=-40/-4

x=+10

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