15x+20=7x-5

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Solution for 15x+20=7x-5 equation: 



15x+20=7x-5

We move all terms to the left:

15x+20-(7x-5)=0

We get rid of parentheses

15x-7x+5+20=0

We add all the numbers together, and all the variables

8x+25=0

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

8x=-25

x=-25/8

x=-3+1/8

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