Question

Solve the system by the substitution method.

X+Y=-3
Y=-4x

Answer 1

x = 1, y = - 4

substitute y = - 4x into the other equation

x - 4x = - 3

- 3x = - 3 ( divide both sides by - 3 )

x = 1

substitute x = 1 into y = - 4x ⇒ y = - 4

Answer 2

find it I cannot find it