Question

Use the elimination method to solve the system of equations. Choose the correct ordered pair.

6x + 7y = 96
6x - 7y = 12

A. (9, 6)
B. (2, 16)
C. (2, 0)
D. (9, 2)

Answer 1

a or d

Answer 2

\(\Large \color{purple}{\rightarrow 12x = 108 }\)
\(\Large \color{purple}{\rightarrow x = 9 }\)

Substitute x with 9:

\(\Large \color{purple}{\rightarrow 54 + 7y = 96 }\)
\(\Large \color{purple}{\rightarrow 7y = 42 }\)
\(\Large \color{purple}{\rightarrow y = 6 }\)

(9,6) is what you get.

Answer 3

a.