Question

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

14x - 2y = 78
2x - 2y = 6

A. (7, 3)
B. (6, 4)
C. (6, 3)
D. (7, 4)

Answer 1

Can you try some yourself? What answer are you getting?

Answer 2

c

Answer 3

You are correct :)

Answer 4

\(\Large \color{purple}{\rightarrow 14(6) - 2(3) = 78 }\)

\(\Large \color{purple}{\rightarrow 84 - 6 = 78 }\)

\(\Large \color{purple}{\rightarrow 78 = 78 }\)

INDEED