8.6r+7.97+3.5r=7(0.7r-6.94)-7.3r

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Solution for 8.6r+7.97+3.5r=7(0.7r-6.94)-7.3r equation: 



8.6r+7.97+3.5r=7(0.7r-6.94)-7.3r

We move all terms to the left:

8.6r+7.97+3.5r-(7(0.7r-6.94)-7.3r)=0

We add all the numbers together, and all the variables

12.1r-(7(0.7r-6.94)-7.3r)+7.97=0



We calculate terms in parentheses: -(7(0.7r-6.94)-7.3r), so:

7(0.7r-6.94)-7.3r

We add all the numbers together, and all the variables

-7.3r+7(0.7r-6.94)

We multiply parentheses

-7.3r+0r-48.58

We add all the numbers together, and all the variables

-6.3r-48.58

Back to the equation:

-(-6.3r-48.58)



We get rid of parentheses

12.1r+6.3r+48.58+7.97=0

We add all the numbers together, and all the variables

18.4r+56.55=0

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

18.4r=-56.55

r=-56.55/18.4

r=-3+1/13.62962962963

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