Question

Look at this system of equations. How can the system be changed so that the two equations have equal x-coefficients?

3x + 2y = 12
6x + 3y = 21

A. Multiply both sides of the top equation by 2
B. Divide both sides of the top equation by 2
C. Multiply both sides of the top equation by 3
D. Divide both sides of the top equation by 3

Answer 1

a

Answer 2

\(\Large \color{purple}{\rightarrow \text{Multiply both sides of the top equation by 2} }\)

You can then eliminate x.