Question

Need help with this please answer :( I’m not good at math at all

5x + 4y = -7
-5x - 2y = 1

Answer 1

y = -3, x = 1

or

(1, -3)

Explanation:

5x + 4y = -7

-5x - 2y = 1

add the two equations together

0x + 2y = -6

2y = -6

2y/2 = -6/2

y = -6/2

y = -3

now substitute y = -3 into either of the equations

5x + 4y = -7

5x + 4(-3) = -7

5x - 12 = -7

5x = -7 + 12

5x = 5

x = 1

Answer 2

y=-3

x=1

(1,-3)

Explanation:

5x+4y=-7

-5x-2y=1

Cancel +5x - 5

2y=-6

y=-3

5x-12=-7 or -5x+6=1

5x=5 -5x=-5

x=1 x=1