3-4(-r-7)=7(3+r)+4

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


3-4(-r-7)=7(3+r)+4

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

Reorder the terms in parentheses
3+(+4r+28)=7*(3+r)+4

Remove unnecessary parentheses
+3+4r+28=+7+*(+3+r+)+4

Reorder the terms in parentheses
3+4r+28=+(+21+7r)+4

Remove unnecessary parentheses
+3+4r+28=+21+7r+4

We move all terms containing r to the left and all other terms to the right. 
+4r-7r=+21+4-3-28

We simplify left and right side of the equation. 
-3r=-6

We divide both sides of the equation by -3 to get r. 
r=2

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