Question

sloveelimination methods X-Y=4 AND 2X+Y=5​

Answer 1

Step-by-step explanation:

x-y=4 ---(1)

2x+y=5-----(2)

solve 1&2 equations

-y and +y will be cancelled in both equations

then, by adding equations

3x=9

x=3

then,

y=-1