10(r+9)=-30

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Solution for 10(r+9)=-30 equation:



10(r+9)=-30
We move all terms to the left:
10(r+9)-(-30)=0
We add all the numbers together, and all the variables
10(r+9)+30=0
We multiply parentheses
10r+90+30=0
We add all the numbers together, and all the variables
10r+120=0
We move all terms containing r to the left, all other terms to the right
10r=-120
r=-120/10
r=-12

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