Question

sollve x+2y=7 and 2x-y=4 in cross multiplication method​

Answer 1

Step-by-step explanation:

solution,

given equation is

x+2y=7

or x = 7-2y ------(i)

now,

2x-y=4

or, 2x=4+y

or, 2(7-2y) = 4+ y

or, 14 - 4y = 4 + y

or, 14 - 4 = y+4y

or, 10/5 = y

or, y = 2

and

x = 7-2×2

or, x = 3