Solve the system by substitution 3x+y=-16 and y=-x-4
2 answers:
Answer:
x=-6
y=2
hope that helps
Answer:
x = - 6
y = 2
Step-by-step explanation:
Equations
3x+y=-16
y=-x-4
Solution
Put y in the second equation into the first equation
3x - x - 4 = - 16
2x - 4 = - 16
2x = - 16 + 4
2x = -12
2x/2 = -12/2
x = - 6
y = -x - 4
y = - -6 - 4
y = 6 - 4
y = 2
===========================
3x + y = - 16
3x + 2 = - 16
3x = -16 - 2
3x = - 18
3x/3 = -18/3
x = -6
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