Question

Use the Substitution Method to solve the following system of equations.
2x + y = 3
-3x + 4y = 1

(1, 1)

(-1, -1)

(1, -1)

(-1, 1)

Answer 1

2x+y =3 becomes y = -2x +3 so you plug that into -3x+4y=1 --> -3x + 4(-2x)+3. Can you do the rest?

Answer 2

-3 so
1(-2x)?

Answer 3

x=1, y=1

Answer 4

^ thats the answer?

Answer 5

Sorry I meant -3x + 4(-2x+3) = 1

Answer 6

but is that the answer?

Answer 7

Yes

Answer 8

thanks

Answer 9

No problem!