Question

Solve the system of equations: 2x – 4y + z = -7 -x + y - z=1 x - 2y = -5

Answer 1

Explanation:

first find the like terms in the question given

2x+x-x=4y-y+2y=z+z=-7 +5

then you add or subtract the like terms

which will be

2x =5y=2z=-2