Question

X-y=4 x+y=3 simulates equation

Answer 1

Step-by-step explanation:

let the two simultaneous equations are

x-y=4--------------(1)

x+y=3---------------(2)

then add equation (1) and (2)

x-y=4

x+y=3

x=7

then

put x=7 in equation (1)

x-y=4

7-y=4

-y=-7+4

-y=-3

y=3

therefore x=7,y=3