-r-3r=-8(-7-r)-5(4+6r)

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Solution for -r-3r=-8(-7-r)-5(4+6r) equation:


-r-3r=-8(-7-r)-5(4+6r)

We simplify the equation to the form, which is simple to understand 
-r-3r=-8(-7-r)-5(4+6r)

Reorder the terms in parentheses
-r-3r=+(+56+8r)-5*(4+6r)

Remove unnecessary parentheses
-r-3r=+56+8r-5+*(+4+6r+)

Reorder the terms in parentheses
-r-3r=+56+8r+(-20-30r)

Remove unnecessary parentheses
-r-3r=+56+8r-20-30r

We move all terms containing r to the left and all other terms to the right. 
-1r-3r-8r+30r=+56-20

We simplify left and right side of the equation. 
+18r=+36

We divide both sides of the equation by 18 to get r. 
r=2

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