Answer:
x + y = - 3.6
2x - z = 1
x + y + z = - 3.8
y - x = - 4.4
Step-by-step explanation:
We have to evaluate the given expressions of x, y, and z where, [tex]x = \frac{2}{5} = 0.4[/tex], y = - 4 and z = - 0.2.
So, x + y = 0.4 + (- 4) = - 3.6
And, 2x - z = 2(0.4) - (- 0.2) = 1
And, x + y + z = 0.4 - 4 - 0.2 = - 3.8
Finally, y - x = - 4 - 0.4 = - 4.4 (Answer)
