The equation given in the question is (5x + 2)/2 = 2x - 1 5x + 2 = 2(2x - 1) 5x + 2 = 4x - 2 5x - 4x = - 2 - 2 x = -4 So the value of the unknown variable comes out to be -4. Yes your calculation is correct it seems from the answer that you have given. I hope i have been able to help you in this regard.Only be careful about the cross multiplication part.
