Answer:6 + 9 = 15
Explanation:
The equation is a + 9 = 15
Let the number be 'a'
Given that,
A number plus 9 is 15
So,
a + 9 =15
a = 15 - 9
a = 6
The equation needed is,
a + 9 = 15
4.4m questions
5.7m answers