What is the answer to
[x+3y=5
[2x-y=-4

x + 3y = 5 => x = 5 - 3y

2x - y = -4

Subs x

2.(5 - 3y) - y = -4

10 - 6y - y = -4

10 - 7y = - 4

10 + 4 = 7y

y = 14/7

y = 2

Subs y

2x - y = -4

2x - 2 = -4

2x = -4 + 2

2x = -2

x = -2/2

x = -1

x = -4

step-by-step explanation:

- 20 - 4(x + 3) = 4x

=> -20 - 4x - 12 = 4x

=> - 32 -4x = 4x

=> -32 = 4x + 4x

=> - 32 = 8x

=> -32/8 = x

=> -4 = x