Question

Solve the system using elimination.

2x – 2y = –8
x + 2y = –1

Answer 1

Answer:

Step-by-step explanation:

Answer 2

2x - 2y = - 8. - >(i)

x + 2y = - 1. - > (ii)

__________

3x - 0 = - 9

3x = - 9

x = - 3

Putting x's value in eqn (i)

2(-3) - 2y = - 8

-6 - 2y = - 8

-2y = - 8+6

-2y = - 2

2y = 2. - > (minus - minus cancel)

y = 1