40+7r=7r+40

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Solution for 40+7r=7r+40 equation: 



40+7r=7r+40

We move all terms to the left:

40+7r-(7r+40)=0

We get rid of parentheses

7r-7r-40+40=0

We add all the numbers together, and all the variables

=0

r=0/1

r=0

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