4(r-7)=40

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Solution for 4(r-7)=40 equation: 



4(r-7)=40

We move all terms to the left:

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

We multiply parentheses

4r-28-40=0

We add all the numbers together, and all the variables

4r-68=0

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

4r=68

r=68/4

r=17

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