-40+R=-6(2r-4)-3r

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Solution for -40+R=-6(2r-4)-3r equation:


-40+r=-6(2r-4)-3r

We simplify the equation to the form, which is simple to understand 
-40+r=-6(2r-4)-3r

Reorder the terms in parentheses
-40+r=+(-12r+24)-3r

Remove unnecessary parentheses
-40+r=-12r+24-3r

We move all terms containing r to the left and all other terms to the right. 
+1r+12r+3r=+24+40

We simplify left and right side of the equation. 
+16r=+64

We divide both sides of the equation by 16 to get r. 
r=4

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