3x-9=4(x+10)

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Solution for 3x-9=4(x+10) equation: 



3x-9=4(x+10)

We move all terms to the left:

3x-9-(4(x+10))=0



We calculate terms in parentheses: -(4(x+10)), so:

4(x+10)

We multiply parentheses

4x+40

Back to the equation:

-(4x+40)



We get rid of parentheses

3x-4x-40-9=0

We add all the numbers together, and all the variables

-1x-49=0

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

-x=49

x=49/-1

x=-49

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