69.3=-2.2(0.4+5.5r)

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Solution for 69.3=-2.2(0.4+5.5r) equation: 



69.3=-2.2(0.4+5.5r)

We move all terms to the left:

69.3-(-2.2(0.4+5.5r))=0

We add all the numbers together, and all the variables

-(-2.2(5.5r+0.4))+69.3=0



We calculate terms in parentheses: -(-2.2(5.5r+0.4)), so:

-2.2(5.5r+0.4)

We multiply parentheses

-11r-0.88

Back to the equation:

-(-11r-0.88)



We get rid of parentheses

11r+0.88+69.3=0

We add all the numbers together, and all the variables

11r+70.18=0

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

11r=-70.18

r=-70.18/11

r=-6+3.5423728813559/9.322033898305

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