Question

What is the value of x if x + 2y = 6 and x + y = 5?

Answer 1

x=3

Explanation:

Answer 2

x=4

y=1

Explanation:

x+2y=6 -----------(1)

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

Using elimination method subtract (2) from (1)

x+2y-(x+y)=6-5

x+2y-x-y=1

2y-y=1

y=1

Now putting y in eq (1)

x+2(1)=6

x+2=6

x=6-2

x=4