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

3x – 5y + z = 12
x + 6y – z = –4
2x – 5y – 2z = –8

Question

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

3x – 5y + z = 12
x + 6y – z = –4
2x – 5y – 2z = –8

anonymous · Answer

A: 2x – 11y = 16
4x + 7y = –16

B: 4x + y = 8
–17y = 0

C: –23y + 4z = 24
–17y = 0

D: 13y – 2z = 24
7y – 4z = 0

amistre64 · Answer

solve for x in the second equation in terms of y and z; and plug that "value" into the x spots of the other 2

amistre64 · Answer

if i see it right its a toss up of the last 2 options

amistre64 · Answer

3z + z = 4z so id gander to say its the third one