-9r-4=-40

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Solution for -9r-4=-40 equation:


-9r-4=-40

We simplify the equation to the form, which is simple to understand 
-9r-4=-40

We move all terms containing r to the left and all other terms to the right. 
-9r=-40+4

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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