4 Mark Question

Question 14 Marks

Find out which operation must be done on both sides of these equations in order to solve them:

x + 9 = 11
x – 4 = 9
8x = 24
$\frac{x}{6}=3$

Answer

Subtract 9 from both sides.
Add 4 to both sides.
Divide both sides by 8.
Multiply both sides by 6.

Question 24 Marks

Rewrite the following using a letter:
i. The sum of a certain number and 3.
ii. The difference is obtained by subtracting 11 from another number.
iii. The product of 15 and another number.
iv. Four times a number is 24.

Answer

i. Let the number be x.
∴ x + 3 represents the sum of a certain number x and 3.

ii. Let the number be x.
∴ x – 11 represents the number obtained by subtracting 11 from another number x.

iii. Let the number be x.
∴ 15x represents the product of 15 and another number x.

iv. Let the number be x.
∴ 4x = 24 represents four the product of a number x four times.

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Maths 4 Mark Question

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