If you were to use the substitution method to solve the following system, choose the new system of equations that would result if z was isolated in the first equation.

2x – 5y + z = 15
4x – y + 3z = 15
3x – 2y + 2z = 13

a. –2x + 14y = –30
–x + 8y = –17

b. 10x – 16y = –30
7x – 12y = –15

c. –18x – 14z = –60
–5x + 8z = 43

d. 22x + 16z = 90
11x + 8z = 43

Question

If you were to use the substitution method to solve the following system, choose the new system of equations that would result if z was isolated in the first equation.

2x – 5y + z = 15
4x – y + 3z = 15
3x – 2y + 2z = 13 

a. –2x + 14y = –30
–x + 8y = –17 

b. 10x – 16y = –30
7x – 12y = –15 

c. –18x – 14z = –60
–5x + 8z = 43 

d. 22x + 16z = 90
11x + 8z = 43

shayaan_mustafa · Answer

Hi nishia :)

How are you dear. ?

It should be a.

anonymous · Answer

hi shayaan im good how are you

shayaan_mustafa · Answer

i am well too. thanks for response dear.. :D

anonymous · Answer

your welcome