(t+42)/3=(t+125)/7

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Solution for (t+42)/3=(t+125)/7 equation: 


t in (-oo:+oo)

(t+42)/3 = (t+125)/7 // - (t+125)/7

(t+42)/3-((t+125)/7) = 0

(t+42)/3+(-1*(t+125))/7 = 0

(7*(t+42))/(3*7)+(-1*3*(t+125))/(3*7) = 0

7*(t+42)-1*3*(t+125) = 0

4*t-81 = 0

(4*t-81)/(3*7) = 0

(4*t-81)/(3*7) = 0 // * 3*7

4*t-81 = 0

4*t-81 = 0 // + 81

4*t = 81 // : 4

t = 81/4

t = 81/4

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