2=8(5r+4)+9

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Solution for 2=8(5r+4)+9 equation: 



2=8(5r+4)+9

We move all terms to the left:

2-(8(5r+4)+9)=0



We calculate terms in parentheses: -(8(5r+4)+9), so:

8(5r+4)+9

We multiply parentheses

40r+32+9

We add all the numbers together, and all the variables

40r+41

Back to the equation:

-(40r+41)



We get rid of parentheses

-40r-41+2=0

We add all the numbers together, and all the variables

-40r-39=0

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

-40r=39

r=39/-40

r=-39/40

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