1.8=1.4(r-7)-12.2

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Solution for 1.8=1.4(r-7)-12.2 equation: 



1.8=1.4(r-7)-12.2

We move all terms to the left:

1.8-(1.4(r-7)-12.2)=0



We calculate terms in parentheses: -(1.4(r-7)-12.2), so:

1.4(r-7)-12.2

We multiply parentheses

1.4r-9.8-12.2

We add all the numbers together, and all the variables

1.4r-22

Back to the equation:

-(1.4r-22)



We get rid of parentheses

-1.4r+22+1.8=0

We add all the numbers together, and all the variables

-1.4r+23.8=0

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

-1.4r=-23.8

r=-23.8/-1.4

r=17+3.5527136788005E-15/1.4

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