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-19-3r=r-4(r+6)
We simplify the equation to the form, which is simple to understand
-19-3r=r-4(r+6)
Reorder the terms in parentheses
-19-3r=r+(-4r-24)
Remove unnecessary parentheses
-19-3r=+r-4r-24
We move all terms containing r to the left and all other terms to the right.
-3r-1r+4r=-24+19
We simplify left and right side of the equation.
r=-5
0=-5
The left and right sides are not equal, therefore there is no solution. This equation is invalid.
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