7(8+r)=84

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Solution for 7(8+r)=84 equation:



7(8+r)=84
We move all terms to the left:
7(8+r)-(84)=0
We add all the numbers together, and all the variables
7(r+8)-84=0
We multiply parentheses
7r+56-84=0
We add all the numbers together, and all the variables
7r-28=0
We move all terms containing r to the left, all other terms to the right
7r=28
r=28/7
r=4

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