Multiply each equation by a constant that would help to eliminate the y terms. 2x-5y = -21
3x-3y = -18
What are the resulting equations?
6x-15y = -63
-15x+ 15y = 90
6x-15y = 63
-15x + 15y = 90
6x-15y = -63
-15x+ 15y = -90

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10

the answer is y = 11.54

hope this : )