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11r-2(-12r-1)=3(4r-7)
We simplify the equation to the form, which is simple to understand
11r-2(-12r-1)=3(4r-7)
Reorder the terms in parentheses
11r+(+24r+2)=3*(4r-7)
Remove unnecessary parentheses
+11r+24r+2=+3+*(+4r-7+)
Reorder the terms in parentheses
11r+24r+2=+(+12r-21)
Remove unnecessary parentheses
+11r+24r+2=+12r-21
We move all terms containing r to the left and all other terms to the right.
+11r+24r-12r=-21-2
We simplify left and right side of the equation.
+23r=-23
We divide both sides of the equation by 23 to get r.
r=-1
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