9x+21=7x+36

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Solution for 9x+21=7x+36 equation: 



9x+21=7x+36

We move all terms to the left:

9x+21-(7x+36)=0

We get rid of parentheses

9x-7x-36+21=0

We add all the numbers together, and all the variables

2x-15=0

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

2x=15

x=15/2

x=7+1/2

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