-105=6(3r-4)-9r

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Solution for -105=6(3r-4)-9r equation:


-105=6(3r-4)-9r

We simplify the equation to the form, which is simple to understand 
-105=6(3r-4)-9r

Reorder the terms in parentheses
-105=+(+18r-24)-9r

Remove unnecessary parentheses
-105=+18r-24-9r

We move all terms containing r to the left and all other terms to the right. 
-18r+9r=-24+105

We simplify left and right side of the equation. 
-9r=+81

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

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