Question

Use the substitution method to solve the following system of equations.

x + 2y - z = 2
3x + y - 2z = -15
3x + 4y - 3z = -2

Answer 1

@Hero

Answer 2

@Hero

Answer 3

hero help me please

Answer 4

you don't have't to use substitute method i just need the answer

Answer 5

it is easy so do it :
x=-2y+z+2
substitute this in the rest of two equations ,
after that , substitute the y and so on

Answer 6

can you just give me the answer, or show me your work please

Answer 7

roh please give me the answer, and i need some help with other ones

Answer 8

ok wait i am solving just need some more time

Answer 9

ok thank, i'll post another question on here

Answer 10

Use the elimination method to solve the following system of equations.

2x + 4y - 3z = -7
3x + y + 4z = -12
x + 3y + 4z = 4

Answer 11

i'll fan you too

Answer 12

ok i got y=+9
z=+24
searching for x

Answer 13

a. (7, -4, -1)
b. (-7, -4, 1)
c. (7, -4, 1)
d. (-7, 4, -1)

theses are the possible answers

Answer 14

x=8

Answer 15

i think yor doing it wrong

Answer 16

may be let me try once again

Answer 17

ya, those are the answers up there it could be,

Answer 18

i jsut need the answer to the first and second question i asked thats it,

Answer 19

x=-7, y=4, z=-1

Answer 20

i 100% sure option D is the answer