Which of the options represents the resulting equation after an equivalent expression for y is substituted into the second equat

Question

3 years ago

8

ion?
1 THROUGH 4 ARE THE ANSWERS

2 answers:

arlik [135] · Answer 1 · 2022-03-27T01:54:30+03:00

8 0

Answer:

The answer is the forth option

Nina [5.8K] · Answer 2 · 2022-03-26T23:54:18+03:00

Nina [5.8K]3 years ago

6 0

Answer:

Correct choice is D

Step-by-step explanation:

Given the system of two equations:

$\left\{\begin{array}{l}4x+y=8\\6x-9y=12\end{array}\right..$

Fro mthe first equation

$y=8-4x.$

Substitute into the second equation $8-4x$ instead of y:

$6x-9(8-4x)=12.$

Note that $8-4x=-4x+8,$ then the second equation will take look

$6x-9(-4x+8)=12.$