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2(4-2)=-2(r+5)
We simplify the equation to the form, which is simple to understand
2(4-2)=-2(r+5)
Simplifying terms in parentheses
2*(+2)=-2*(r+5)
Reorder the terms in parentheses
+(+4)=-2*(r+5)
Remove unnecessary parentheses
+4=-2+*(+r+5+)
Reorder the terms in parentheses
+4=+(-2r-10)
Remove unnecessary parentheses
+4=-2r-10
We move all terms containing r to the left and all other terms to the right.
+2r=-10-4
We simplify left and right side of the equation.
+2r=-14
We divide both sides of the equation by 02 to get r.
r=-7
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