7(7+8r)-8=-407

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Solution for 7(7+8r)-8=-407 equation:


7(7+8r)-8=-407

We simplify the equation to the form, which is simple to understand 
7(7+8r)-8=-407

Reorder the terms in parentheses
+(+49+56r)-8=-407

Remove unnecessary parentheses
+49+56r-8=-407

We move all terms containing r to the left and all other terms to the right. 
+56r=-407-49+8

We simplify left and right side of the equation. 
+56r=-448

We divide both sides of the equation by 56 to get r. 
r=-8

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