Answer :

hai0612
827/105 = x + 11/15 
⇔ x + (11×7) / (15×7) - 827/105 =0
⇔ x + 77/105 - 827/105 =0
⇔ x - 750/105 = 0
⇔x - (15×50)/(15×7) = 0
⇔ x - 50/7 =0
⇔ x = 50/7

Other Questions