Question

x+y=10. x-y=-4
in substitution method ​

Answer 1

Answer:

x=3,y==7

Step-by-step explanation:

in first equation X+y=10

therefore X=10-y

putting in equation x-y=-4

10-y-y=-4

10-2y=-4

-2y=-14

2y=14

y=7

X=10-7=3