Answer:
yes its correct, but you should show your work clearly step by step (see below)
Explanation:
My advise would be to NOT skip steps, work each step out methodically and you can get the answer:
(11-3z) + x + y
when x = 9, y = 5 and z = 2,
=[11 - 3(2) ] + 9 + 5 Evaluate parentheses (PEDMAS)
=[11 - 6 ] + 9 + 5
=5 + 9 + 5
=19