3x+20=7x-50

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Solution for 3x+20=7x-50 equation: 



3x+20=7x-50

We move all terms to the left:

3x+20-(7x-50)=0

We get rid of parentheses

3x-7x+50+20=0

We add all the numbers together, and all the variables

-4x+70=0

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

-4x=-70

x=-70/-4

x=17+1/2

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