Question

Solve the given system, using the substitution method.

y = 3x – 4
9x – 3y = 14


A.
There is no solution.

B.
(12, 14)

C.
(14, 12)

D.
There are an infinite number of solutions.

Answer 1

@SolomonZelman

Answer 2

@StudyGurl14

Answer 3

\(\large\color{slate}{ y = 3x - 4 }\)
\(\large\color{slate}{ 9x - 3y = 14 }\)

the first equation gives you that \(\large\color{blue}{ y }\) is same thing as \(\large\color{blue}{ 3x - 4 }\) , correct ?

Answer 4

yus

Answer 5

so, that means that you can substitute \(\large\color{blue}{ 3x - 4 }\) instead of \(\large\color{blue}{ y }\) into the second equation.

Answer 6

Can you do that for me please?