1+8(r+4)=9r-8

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Solution for 1+8(r+4)=9r-8 equation: 



1+8(r+4)=9r-8

We move all terms to the left:

1+8(r+4)-(9r-8)=0

We multiply parentheses

8r-(9r-8)+32+1=0

We get rid of parentheses

8r-9r+8+32+1=0

We add all the numbers together, and all the variables

-1r+41=0

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

-r=-41

r=-41/-1

r=+41

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