15x+20=7x+12

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Solution for 15x+20=7x+12 equation: 



15x+20=7x+12

We move all terms to the left:

15x+20-(7x+12)=0

We get rid of parentheses

15x-7x-12+20=0

We add all the numbers together, and all the variables

8x+8=0

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

8x=-8

x=-8/8

x=-1

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