45-2×(15-3) Please Help me figure this out because my calculator says the answer is 21 but I don't know why

Question

asked Jun 7, 2020 24.8k views

1 Answer

Borisu · Answer 1 · 2020-06-13T16:37:27+0000

Answer:

see explanation

Explanation:

Following the order of operations as set out in PEMDAS

Given

45 - 2 × (15 - 3) ← evaluate parenthesis

= 45 - 2 × 12 ← evaluate multiplication

= 45 - 24 ← evaluate subtraction

= 21