7x-9=8-3(4-5x)

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Solution for 7x-9=8-3(4-5x) equation: 



7x-9=8-3(4-5x)

We move all terms to the left:

7x-9-(8-3(4-5x))=0

We add all the numbers together, and all the variables

7x-(8-3(-5x+4))-9=0



We calculate terms in parentheses: -(8-3(-5x+4)), so:

8-3(-5x+4)

determiningTheFunctionDomain
-3(-5x+4)+8

We multiply parentheses

15x-12+8

We add all the numbers together, and all the variables

15x-4

Back to the equation:

-(15x-4)



We get rid of parentheses

7x-15x+4-9=0

We add all the numbers together, and all the variables

-8x-5=0

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

-8x=5

x=5/-8

x=-5/8

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