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

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



10(x-3)=-10(x+9)
We move all terms to the left:
10(x-3)-(-10(x+9))=0
We multiply parentheses
10x-(-10(x+9))-30=0
We calculate terms in parentheses: -(-10(x+9)), so:
-10(x+9)
We multiply parentheses
-10x-90
Back to the equation:
-(-10x-90)
We get rid of parentheses
10x+10x+90-30=0
We add all the numbers together, and all the variables
20x+60=0
We move all terms containing x to the left, all other terms to the right
20x=-60
x=-60/20
x=-3

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