-(r-4)-8=-40+8r

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Solution for -(r-4)-8=-40+8r equation:


-(r-4)-8=-40+8r

We simplify the equation to the form, which is simple to understand 
-(r-4)-8=-40+8r

Remove unnecessary parentheses
-1r+4-8=-40+8r

We move all terms containing r to the left and all other terms to the right. 
-1r-8r=-40-4+8

We simplify left and right side of the equation. 
-9r=-36

We divide both sides of the equation by -9 to get r. 
r=4

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