Question

Solve the system of equations...x+y+z=6 and 2x+4y+2z=18 and -x+8y-3z=11.

Answer 1

I would start by multiplying the first equation by \(-2\) and then add it to the second equation.

Answer 2

no not necessary

Answer 3

@alex: Try to do what I said and tell what you get.

Answer 4

y=3

Answer 5

there is a seperate answer for each one

Answer 6

z=5
x=-2

Answer 7

do you want solution?