Question 84493
Hello,

This is a system of three equations. You have to eliminate for only each term, and then you use this term to help you solve the others.

x + 5y = 0 ----------(1)
x + 6y + z = 1 ------(2)
-2x - y - z = -41 ---(3)

(2) + (3): -x + 5y = -40 ---(4) <-- I am doing this so I can get rid of the z for the time being.

(4) + (1): 10y = -40

             y = -4

Since you know that x + 5y = 0, x = -5y.

Therefore, x = -5(-4)

x = 20

I'll leave it to you to find z. Please write back for more help if needed.