Question

2x-y=-2 & x-2y=-16

It's due in an hour and I'm almost done :)

Answer 1

Answer: x = 4, y = 10

Explanation:

We can solve it by Substitution Method,
=> 2x - y = -2 (Eq. 1)
=> x - 2y = - 16 (Eq. 2)

Therefore, from Eq. 2 :-
=> x = -16 + 2y (Eq. 3)

Substitute value of ‘x’ in Eq. 1 :-
=> 2x - y = -2
= 2(-16 + 2y) - y = -2
= -32 + 4y - y = -2
= -32 + 3y = -2
= 3y = -2 + 32 = 30
= 3y = 30
=> y = 30/3 = 10

Therefore, y = 10

Substitute value of ‘y’ in Eq. 3 :-
=> x = -16 + 2y
= x = -16 + 2(10)
=> x = -16 + 20 = 4

Therefore, x = 4 and y = 10