Question

Solve the following system of equations.

3x + 3y + 2z = –5
x + y + 3z = –4
2x + 2y + 5z = –7

I found z which = -1 but I keep somehow when trying to find x or y keep finding z and its ticking me off

Answer 1

i dont understand what im doing wrong

Answer 2

Yes z = -1

Answer 3

ok so whats y or x... I keep coming up with the equation finding z. and Im trying to find y or x now

Answer 4

Substitute z in the equations

Answer 5

infinite solutions

Answer 6

x and y take many values...

Answer 7

satisfying x + y = -1 and z = -1

Answer 8

so u have only two equations but 3 variables..in this case x and y take infinite no of values

Answer 9

ok?

Answer 10

@him1618 that's what I said

Answer 11

its important to highlight the relation to the no of equations and variables

Answer 12

the answers givin for this equation are
a: (-4,-3,1)
b:(-4,3,-1)
c:(4,-3,-1)
d:(-4,-3,-1)

Answer 13

b

Answer 14

no infinite solutions ?

Answer 15

x+y=-1

Answer 16

As i said x and y should be satisfying x+y = -1 and z= -1....Only b satisfies these conditions

Answer 17

got it?

Answer 18

thank you , and yes!

Answer 19

welcome:)