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4(r-7)=4(r+3)
We simplify the equation to the form, which is simple to understand
4(r-7)=4(r+3)
Reorder the terms in parentheses
+(+4r-28)=4*(r+3)
Remove unnecessary parentheses
+4r-28=+4+*(+r+3+)
Reorder the terms in parentheses
+4r-28=+(+4r+12)
Remove unnecessary parentheses
+4r-28=+4r+12
We move all terms containing r to the left and all other terms to the right.
+4r-4r=+12+28
We simplify left and right side of the equation.
r=+40
0=40
The left and right sides are not equal, therefore there is no solution. This equation is invalid.
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