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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