Question

Solve this system of equations using the substitution method.

Please help! Thank you! (,,•﹏•,,)

Answer 1

y=-3x-9(eq 1)
y=-4x-13(eq 2)
Substitute eq1 into eq 2
3x-9=4x-13
Collect like terms
13-9=4x-3x
4=x
X=4
y=3x-9
y=3(4)-9
y=12-9
y=3