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-329=-7(-7r-2)
We simplify the equation to the form, which is simple to understand
-329=-7(-7r-2)
Reorder the terms in parentheses
-329=+(+49r+14)
Remove unnecessary parentheses
-329=+49r+14
We move all terms containing r to the left and all other terms to the right.
-49r=+14+329
We simplify left and right side of the equation.
-49r=+343
We divide both sides of the equation by -049 to get r.
r=-7
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