40r-40=7(-2r+2)

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Solution for 40r-40=7(-2r+2) equation: 



40r-40=7(-2r+2)

We move all terms to the left:

40r-40-(7(-2r+2))=0



We calculate terms in parentheses: -(7(-2r+2)), so:

7(-2r+2)

We multiply parentheses

-14r+14

Back to the equation:

-(-14r+14)



We get rid of parentheses

40r+14r-14-40=0

We add all the numbers together, and all the variables

54r-54=0

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

54r=54

r=54/54

r=1

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