Question

find the value of x and y x-y=10 ,X+y=2​

Answer 1

Step-by-step explanation:

x - y = 10

x = 10 + y

x + y = 2

10 + y + y = 2

2y = 2 - 10

y = -8/2 = -4

x = 10 + y

x = 10 + (-4)

x = 6

Answer 2

I am using substitution method here,

x-y=10 --------------equation 1

x+y=2----------------equation 2

In equation 1

x-y=10

x=10+y---------------equation 3

Substituting the value of x in equation 2

x+y=2

10+y+y=2

10+2y=2

2y=2-10

2y=-8

y= -8/2

y= -4

Substituting the value of y in equation 3

x= 10+y

x=10+(-4)

x=10-4

x=6

Hence, x=6 and y= -4.