Question

Solve, using the substitution method.

y = 2x + 6
3x – y = 6

Answer 1

A.
(14, 12)

B.
(12, 30)

C.
There is no solution.

D.
There are an infinite number of solutions.

Answer 2

@Luigi0210

Answer 3

Plug in y:
\[\LARGE 3x-(2x+6)=6\]
Simplify/distribute:
\[\LARGE 3x-2x-6=6\]
\[\LARGE x=12\]
Now we have the x value:
\[\LARGE (12, y)\]
Look for the y value and you're done.

Answer 4

So it's B?

Answer 5

Well it is the only one with an x value of 12, so yea.

Answer 6

ok Thank you so much!!!