If + means x, x means -, ÷ means +, and - means ÷, what will be the value of the given expression? 15 - 3 ÷ 25 × 7 + 3
Let's solve this problem step-by-step, applying the given substitutions:
- + means ×
- × means −
- ÷ means +
- − means ÷
The given expression is: 15 − 3 ÷ 25 × 7 + 3
Substitute the symbols according to the given rules:
The expression becomes: 15 ÷ 3 + 25 − 7 × 3
Now, following the order of operations (division/multiplication before addition/subtraction):
- 15 ÷ 3 = 5
- 7 × 3 = 21
The expression simplifies to:
5 + 25 − 21
Now, performing the addition and subtraction from left to right:
- 5 + 25 = 30
- 30 − 21 = 9
Therefore, the value of the expression is 9.
Similar Questions
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