7x+4=(x-3)+8x-9

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Solution for 7x+4=(x-3)+8x-9 equation: 



7x+4=(x-3)+8x-9

We move all terms to the left:

7x+4-((x-3)+8x-9)=0



We calculate terms in parentheses: -((x-3)+8x-9), so:

(x-3)+8x-9

We add all the numbers together, and all the variables

8x+(x-3)-9

We get rid of parentheses

8x+x-3-9

We add all the numbers together, and all the variables

9x-12

Back to the equation:

-(9x-12)



We get rid of parentheses

7x-9x+12+4=0

We add all the numbers together, and all the variables

-2x+16=0

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

-2x=-16

x=-16/-2

x=+8

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