Question

X + Y = 8
+ +
X - Y = 6
= =
13 8

Answer 1

Answer:

×+y=8 ••(1)

×-y=6 ••(2)

x=8-y

put in equ••2

8-y-y=6

-2y=6-8

-2y= -2

y=1

put equ. ..1

x+1=8

×=8-1

×=7

Answer 2

Add together

2x+y-y=14

+y-y cancel out

2x=14

X=7

7+y=8

Y=8-7

Y=1

X=7. Y=1