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2(5r+20)=8(r+5)+2r
We simplify the equation to the form, which is simple to understand
2(5r+20)=8(r+5)+2r
Reorder the terms in parentheses
+(+10r+40)=8*(r+5)+2r
Remove unnecessary parentheses
+10r+40=+8+*(+r+5+)+2r
Reorder the terms in parentheses
+10r+40=+(+8r+40)+2r
Remove unnecessary parentheses
+10r+40=+8r+40+2r
We move all terms containing r to the left and all other terms to the right.
+10r-8r-2r=+40-40
We simplify left and right side of the equation.
r=0
0=0
This equation is an identity, so all real numbers are solutions.
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