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-46=6(-10r+7)-4(-7r-2)
We simplify the equation to the form, which is simple to understand
-46=6(-10r+7)-4(-7r-2)
Reorder the terms in parentheses
-46=+(-60r+42)-4*(-7r-2)
Remove unnecessary parentheses
-46=-60r+42-4+*(-7r-2+)
Reorder the terms in parentheses
-46=-60r+42+(+28r+8)
Remove unnecessary parentheses
-46=-60r+42+28r+8
We move all terms containing r to the left and all other terms to the right.
+60r-28r=+42+8+46
We simplify left and right side of the equation.
+32r=+96
We divide both sides of the equation by 32 to get r.
r=3
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