Question

HELP QUICKLY

Solve by substitution.
2x - 4 = y
2y + 3x =
=
([?],[ ]
13

Answer 1

Answer: (3,2)

Explanation:

Since we are given y, we can plug y into the second equation.

`2(2x-4)+3x=13` [distribute]

`4x-8+3x=13` [combine like terms]

`7x-8=13` [add both sides by 8]

`7x=21` [divide both side sby 7]

`x=3`

Now that we have x, we can plug in to find y.

`2(3)-4=y` [multiply]

`6-4=y` [subtract]

`y=2`

We get (3,2) as our answer.