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-3r-1+4-11=6r-r
We simplify the equation to the form, which is simple to understand
-3r-1+4-11=6r-r
We move all terms containing r to the left and all other terms to the right.
-3r-6r+1r=+1-4+11
We simplify left and right side of the equation.
-8r=+8
We divide both sides of the equation by -8 to get r.
r=-1
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