-1=9+r

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Solution for -1=9+r equation:


-1=9+r

We simplify the equation to the form, which is simple to understand 
-1=9+r

We move all terms containing r to the left and all other terms to the right. 
-1r=+9+1

We simplify left and right side of the equation. 
-1r=+10

We divide both sides of the equation by -01 to get r. 
r=-10

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