(r+4)+2=7

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Solution for (r+4)+2=7 equation: 



(r+4)+2=7

We move all terms to the left:

(r+4)+2-(7)=0

We add all the numbers together, and all the variables

(r+4)-5=0

We get rid of parentheses

r+4-5=0

We add all the numbers together, and all the variables

r-1=0

We move all terms containing r to the left, all other terms to the right

r=1

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