12x+30=5x-20

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Solution for 12x+30=5x-20 equation: 



12x+30=5x-20

We move all terms to the left:

12x+30-(5x-20)=0

We get rid of parentheses

12x-5x+20+30=0

We add all the numbers together, and all the variables

7x+50=0

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

7x=-50

x=-50/7

x=-7+1/7

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