1: i am thinking of a number. When it is increased by 7, it equals 21. what is my number
N = 28
N = 14
N = 7
N = 147
2: i am thinking of a number. It is multiplied by 9. The product is 27. What is my number
N = 36
N = 18
N = 3
N = 4
3: Translate the following sentence into an equation. Then solve the equation
The difference of a number and 7 an 21
21 - 7 = n; n = 14
n + 7 = 21; n=14
n + = 21; n = 28
21 - 7 = n; n = 14
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