Question

Write and equation on/ three times the sum of six and a number is 69

Answer 1

Explanation:

3(x + 6) = 69

3x + 18 = 69

3x = 51

x = 17

Answer 2

3(6 + a) = 69

Explanation:

Let the unknown number be a

3(6+a) = 69

18 + 3a = 69

3a = 69-18

3a = 51

a = 51/3

a = 17