B
Multiply the 2nd equation by 3
Mateo plans to solve the system below using elimination. Which is a reasonable first step Mateo could take?
-x + 6y = 9
3x + 2y = 13
Multiply the 2nd equation by 3
B
Multiply the 2nd equation by -3
C
Multiply the 1st equation by -3
D
Any of the above
1 answer