# Pre-Calculus

posted by
**Ann** on
.

Solve the equation 2x + 5y - 3z = -1. Write the general solution as a matrix equation.

I did some guessing and ended up getting this much:

[x]= [-1/2 _ _ ] X [1]

[y]= [ 0 1 0 ] X [s]

[z]= [ 0 0 1 ] X [t]

however I still can't figure out the last two values in the first row