Question

A pair of linear equation which has a unique solution x = 2 and y =minus 3 is x + y =1 and 2x minus 3y = minus 5​

Answer 1

Step-by-step explanation:

If x = 2, y = – 3 is a unique solution of any pair of equation, then these values must satisfy that pair of equations.

From option (b), LHS = 2x + 5y = 2(2) + 5(- 3) = 4 – 15 = – 11 = RHS

and

LHS = 4x + 10y = 4(2) + 10(- 3)= 8 –

30 = – 22 = RHS