2x+45=99-x

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Solution for 2x+45=99-x equation: 



2x+45=99-x

We move all terms to the left:

2x+45-(99-x)=0

We add all the numbers together, and all the variables

2x-(-1x+99)+45=0

We get rid of parentheses

2x+1x-99+45=0

We add all the numbers together, and all the variables

3x-54=0

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

3x=54

x=54/3

x=18

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