Question

URGENT!!!!!!!! Renee wants to solve the system of equations. Which number can she multiply the first equation by so that when the two equations are added together, the y term is eliminated?

2/3x + 1/5y =6

1/6x -3y =8



a. –15
b. –5
c. 5
d. 15

Answer 1

The answer to the question is D.

Answer 2

d. 15

15(2/3x +1/5y) = 15(6)
   10x + 3y = 90
+ 1/6x - 3y = 8
When those two equations are added, the 3y and -3y cancel out, eliminating the y.
Therefore, multiplying the first equation by d. 15 is the answer