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-6(-5-r)=4
We move all terms to the left:
-6(-5-r)-(4)=0
We add all the numbers together, and all the variables
-6(-1r-5)-4=0
We multiply parentheses
6r+30-4=0
We add all the numbers together, and all the variables
6r+26=0
We move all terms containing r to the left, all other terms to the right
6r=-26
r=-26/6
r=-4+1/3
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