-3(7r-2)-4=149

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Solution for -3(7r-2)-4=149 equation:


-3(7r-2)-4=149

We simplify the equation to the form, which is simple to understand 
-3(7r-2)-4=149

Reorder the terms in parentheses
+(-21r+6)-4=149

Remove unnecessary parentheses
-21r+6-4=+149

We move all terms containing r to the left and all other terms to the right. 
-21r=+149-6+4

We simplify left and right side of the equation. 
-21r=+147

We divide both sides of the equation by -21 to get r. 
r=-7

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