Question

Use the Substitution Method to solve the following system of equations.
4x + y = 11
x + 2y = 8

(3, 2)

(2, 3)

(-2, -3)

(-2, 3)

Answer 1

You could solve the first equation for y by subtracting 4x from both sides.
Then you could substitute that answer for y into the second equation.

Answer 2

I would just substitute the values in for x and y that you already have, but, for substitution you also need to solve for one of the equations. So, for the second one: x=8-2y. Then substitute that into the first equation: 4(8-2y)+y=11. Then solve. 32-8y+y=11. 32-7y=11, then -7y=-21, so y=3. And then substitute that value in for the y. So, 4x+3=11. 4x=8. x=2.
Hope this helps

Answer 3

2-3 ?

Answer 4

Yes. (2,3) is the correct answer. Good for you!!