40+(x+30)=2x

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Solution for 40+(x+30)=2x equation: 



40+(x+30)=2x

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

-2x+x+30+40=0

We add all the numbers together, and all the variables

-1x+70=0

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

-x=-70

x=-70/-1

x=+70

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