Question

Convert the following statements in equation form:
(a) Five times a number x gives 20.
(b) Adding 7 to three times a number y gives 1.

• A. (a) 5x = 20 ; (b) 3y + 7 = 1
• B. (a) x + 5 = 20 ; (b) 7y – 3 = 1
• C. (a) 5x = 20 ; (b) 7y + 3 = 1
• D. (a) x + 5 = 20 ; (b) 3y + 7 = 1

Answer 1

The correct option is A (a) 5x = 20 ; (b) 3y + 7 = 1

5 times x can be written as 5x.
So, (a) becomes 5x = 20
Adding 7 to three times y can be written as: 3y + 7
So, (b) becomes 3y + 7 = 1