Question

Solve the following system of equations.

x + 4y + z = –10
3x – 3y + 6z = –21
x + 2y + 2z = –10

Answer 1

would i cancel out z in the first and third equation by multiplying the first by -2?

Answer 2

multiply second equation by 1/3 then multiply third equation by -1 and 2.nd eqn plus third eqn. give y is equal to -1 you can do rest

Answer 3

thanks i got it i think.
would it be
(-4,-1,-2)
for the final answer?