Question

in process of elimination method solve a pair of equation that is x-y=1 and x-2y=-2​

Answer 1

Step-by-step explanation:

x-y=1 (1)

x-2y=-2 (2)

subtract 1 and 2

y=3

put value of y in (1) eqn

x-3=1

x=1+3=4