30+30+40=2x+x+10

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Solution for 30+30+40=2x+x+10 equation: 



30+30+40=2x+x+10

We move all terms to the left:

30+30+40-(2x+x+10)=0

We add all the numbers together, and all the variables

-(3x+10)+30+30+40=0

We add all the numbers together, and all the variables

-(3x+10)+100=0

We get rid of parentheses

-3x-10+100=0

We add all the numbers together, and all the variables

-3x+90=0

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

-3x=-90

x=-90/-3

x=+30

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