Question

solve by substitution method

x+y=-4
y=-3x+2

Answer 1

substituting value from eqn2 to eqn 1
x+(-3x+2) = -4
x-3x+2=-4
-2x=-6
x=3
y=-7

Answer 2

x + y = -4
x = -4 - y
y = -3x + 2
= -3(-4-y) + 2
= 12 + 3y + 2
-2y = 14
y = -7
x = -4 -(-7)
= -4 + 7
= 3

Answer 3

x=3
y=-7

Answer 4

thank ya