To subtract (-y + 3x + 5z) from (4y - x - 2z), we can just subtract the corresponding coefficients of each variable.
So,
- the coefficient of y is 4 - (-1) = 5
- the coefficient of x is -1 - 3 = -4
- the coefficient of z is -2 - 5 = -7
Therefore, the result is:
5y - 4x - 7z.
So the correct option is (a) 5y - 4x - 7z.