Find the mistake in these mathematical equations. x = 2 x(x-1) = 2(x-1) x2-x = 2x-2 x2-2x = x-2 x(x-2) = x-2 x = 1

Find the value of all these with the help of the equations below. If Pastry + Icecream + Pizza + Donut = 24 Pastry + Donut = Icecream Pizza - Donut = 2 Pastry + Pastry - 1 = Icecream Then Pastry = ? Pizza = ? Icecream = ? Donut = ?

The following is my attempt at proving that 1<-1 . In which of these steps did I first make a mistake? Step 1: Let i = sqrt(-1) then i^2 = -1 and i^4=1. Step 2: Hence, we have i^2 < i^4 Step 3: We divide both sides by i to get i < i^3. Step 4: We divide both sides by i again to get 1<i^2 or 1 < -1

Find the value of a, b, c , d in the following equations?

a + b = 8 + + c + d = 8 = = 13 8

Can you find digits that make equations true in the following alphametic puzzles (cryptarithms)?

RE + MI = FA DO + SI = MI LA + SI = SOL