Question

Can someone help me with this question? :

Answer 1

Give me a sec

Answer 2

Im sorry man I thought I got it

Answer 3

have you covered solving for .... substitution or elimination yet?

Answer 4

in short, you'd do the same you do with a system of equations of TWO variables

you have 3 here so
you grab 2 of those equations, any two

cancel out or eliminate one variable, say "z"

then you pick another two again,
cancel or eliminate "z" again

then grab the resultant equations, the TWO of them

and solve for either of the remaining "x" or "y"