7x-9=10x+9

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Solution for 7x-9=10x+9 equation: 



7x-9=10x+9

We move all terms to the left:

7x-9-(10x+9)=0

We get rid of parentheses

7x-10x-9-9=0

We add all the numbers together, and all the variables

-3x-18=0

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

-3x=18

x=18/-3

x=-6

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