2x+21=118+5x+40/2

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Solution for 2x+21=118+5x+40/2 equation: 



2x+21=118+5x+40/2

We move all terms to the left:

2x+21-(118+5x+40/2)=0

We add all the numbers together, and all the variables

2x-(5x+138)+21=0

We get rid of parentheses

2x-5x-138+21=0

We add all the numbers together, and all the variables

-3x-117=0

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

-3x=117

x=117/-3

x=-39

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