Question

Solve the system of equations using substitution.

y = −2x + 1
4x + 2y = −1

(0, −3)
(−3, 0)
No solution
Infinitely many solutions

Answer 1

Substitution is where you substitute the y or the x for whatever it equals
So here, you can substitute the y in the second equation for what it is in the first equation (-2x+1)

Answer 2

So you get 4x + 2(-2x+1) = -1
Can you solve it now?