1/7(144+28)=2(R+2)

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Solution for 1/7(144+28)=2(R+2) equation: 


R in (-oo:+oo)

(1/7)*(28+144) = 2*(R+2) // - 2*(R+2)

(1/7)*(28+144)-(2*(R+2)) = 0

(1/7)*(28+144)-2*(R+2) = 0

172/7-2*(R+2) = 0

(-2*7*(R+2))/7+172/7 = 0

172-2*7*(R+2) = 0

144-14*R = 0

(144-14*R)/7 = 0

(144-14*R)/7 = 0 // * 7

144-14*R = 0

144-14*R = 0 // - 144

-14*R = -144 // : -14

R = -144/(-14)

R = 72/7

R = 72/7

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