2x+45=5x+21

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Solution for 2x+45=5x+21 equation: 



2x+45=5x+21

We move all terms to the left:

2x+45-(5x+21)=0

We get rid of parentheses

2x-5x-21+45=0

We add all the numbers together, and all the variables

-3x+24=0

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

-3x=-24

x=-24/-3

x=+8

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