15+13=23+x

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Solution for 15+13=23+x equation: 



15+13=23+x

We move all terms to the left:

15+13-(23+x)=0

We add all the numbers together, and all the variables

-(x+23)+15+13=0

We add all the numbers together, and all the variables

-(x+23)+28=0

We get rid of parentheses

-x-23+28=0

We add all the numbers together, and all the variables

-1x+5=0

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

-x=-5

x=-5/-1

x=+5

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