7x+40=5x+30

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Solution for 7x+40=5x+30 equation: 



7x+40=5x+30

We move all terms to the left:

7x+40-(5x+30)=0

We get rid of parentheses

7x-5x-30+40=0

We add all the numbers together, and all the variables

2x+10=0

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

2x=-10

x=-10/2

x=-5

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