Question

Xavier thinks of a number.He multiplies it by 2 and then adds 8.The answer is 20.What is the number?​

Answer 1

Answer:

let the number be x

equation = 2x + 8 = 20

2x = 20 - 8 = 12

x = 12/2 = 6

the number Xavier thinks is 6

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Answer 2

Answer:

Let the number Xavier thought be "X"

Multiplies it by 2 then and adds it by 8 = 2x + 8

He obtains the answer as 20   -    2x + 8 = 20

                                                        x = $\frac{20 - 8}{2}$ = $\frac{12}{2}$ = 6

So, the number Xavier thought of was X; 6

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