3(5-r)+6=9

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Solution for 3(5-r)+6=9 equation: 



3(5-r)+6=9

We move all terms to the left:

3(5-r)+6-(9)=0

We add all the numbers together, and all the variables

3(-1r+5)+6-9=0

We add all the numbers together, and all the variables

3(-1r+5)-3=0

We multiply parentheses

-3r+15-3=0

We add all the numbers together, and all the variables

-3r+12=0

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

-3r=-12

r=-12/-3

r=+4

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