12x-5=7x-20

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Solution for 12x-5=7x-20 equation: 



12x-5=7x-20

We move all terms to the left:

12x-5-(7x-20)=0

We get rid of parentheses

12x-7x+20-5=0

We add all the numbers together, and all the variables

5x+15=0

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

5x=-15

x=-15/5

x=-3

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