Choose one of the following correct combination of mathematical signs which can be filled sequentially to balance the following equation.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. ÷, ×, +, =, -.
Given equation:
Option 1: ÷, ×, +, =, -
After interchanging the expression becomes:
(28 ÷ 4) × 3 + 9 = 42 - 12
(7 × 3) + 9 = 30
(21 + 9) = 30
30 = 30