Question

Solve the system of equations using any appropriate method: 5x + 2y = -4 and -x + 2y = 8

Plz help:(
A)(-2,3)
B)(1,3)
C)(3,2)
D)(6,12)

Answer 1

A

Explanation:

-x + 2y = 8

5x + 2y = -4

+ x. -2y. -8

6x = -12

÷6. ÷6

x = -2

5(-2) + 2y = -4

-10 + 2y = -4

+10. +10

2y = 6

÷2. ÷2

y = 3