Question

solve the system x+y=6 and x-y=2. What is the value of x?

a. 6
b.2
c.4
d.0

Answer 1

x=4

Answer 2

Adding the equations:
2x = 8
x = 4
y = 6

Answer 3

y = 2 sorry

Answer 4

x+y=6 -(1)
x-y=2 -(2)
(1) +(2)
2x = 6+2
x=4
@wasiqss I know you're smart, but please show your solution so that the asker can learn :)

Answer 5

thanks guys!:)

Answer 6

Sorry @Callisto i just woke up so dint feel like explaining all , but i will next time :)

Answer 7

We know y = 2 as x - y = 2 ; 4 - y = 2 ; 4 = 2 + y ; 2 = y

Answer 8

thanks parth Kohli!