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Methods of Solving an Equation

Write down yo...

Question

Write down your age. Add 5 to it. Multiply the sum by 2. Subtract 10 from it. Next divide it by 2. What do you get? [ 3 marks ]

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Solution

Let the age be 10 years
Add 5 to it = 10 + 5 = 15 years [ 1 mark ]
Multiply the sum by 2 = 15 x 2 = 30
Subtract 10 from it = 30 - 10 = 20 [ 1 mark ]
Divide it by 2 = 20 ÷ 2 = 10
You will get your age. [ 1 mark ]

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