1/8(r-40)=7/8

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Solution for 1/8(r-40)=7/8 equation: 


r in (-oo:+oo)

(1/8)*(r-40) = 7/8 // - 7/8

(1/8)*(r-40)-(7/8) = 0

(1/8)*(r-40)-7/8 = 0

1/8*(r-40)-7/8 = 0

(1/8*8*(r-40))/8-7/8 = 0

1/8*8*(r-40)-7 = 0

r-47 = 0

(r-47)/8 = 0

(r-47)/8 = 0 // * 8

r-47 = 0

r-47 = 0 // + 47

r = 47

r = 47

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