Question

fill in the blank. x terms in a system can be eliminated by adding the results of multiplying the first equation by ____ and the second equation by ____ . 3x+8y=4-2x+3y=7 a) 3,2b) 2,3c) 3,-2d) -3,2e) none

Answer 1

3x + 8y = 4

-2x + 3y = 7

Multiply the first equation by 2 and the second equation by 3, then add

6x + 16y = 4

+

-6x +9y= 21

___________

0x +25y = 5

25y = 5

Correct option: b) 2,3