Question

Simplify:
34−[20−(10−7)]

a) 15
b) 17
c) 19
d) 21

Answer 1

To simplify the expression 34−[20−(10−7)], follow the order of operations and simplify the innermost parentheses first. The final answer is b) 17.

Step-by-step explanation:

To simplify the expression: 34−[20−(10−7)], we need to follow the order of operations, which is parentheses, exponents, multiplication/division (from left to right), and addition/subtraction (from left to right). Let's start by simplifying the innermost parentheses:

10 - 7 = 3

Now, we simplify the next set of parentheses:

20 - 3 = 17

Finally, we subtract 17 from 34:

34 - 17 = 17

Therefore, the simplified expression is 17.