20x+40=7x+79

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Solution for 20x+40=7x+79 equation: 



20x+40=7x+79

We move all terms to the left:

20x+40-(7x+79)=0

We get rid of parentheses

20x-7x-79+40=0

We add all the numbers together, and all the variables

13x-39=0

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

13x=39

x=39/13

x=3

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