10(r+4)=20

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Solution for 10(r+4)=20 equation:



10(r+4)=20
We move all terms to the left:
10(r+4)-(20)=0
We multiply parentheses
10r+40-20=0
We add all the numbers together, and all the variables
10r+20=0
We move all terms containing r to the left, all other terms to the right
10r=-20
r=-20/10
r=-2

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