Question

Alex was thinking of a number. Alex doubles it, then adds 20 to get an answer of 22.7. What was the original number
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Answer 1

Step-by-step explanation:

let the no. be x which Alex think

then , according to condition

2x + 20 = 22.7

2x = 2.7

x = 2.7/2 or 27/20

Answer 2

Answer:

the original number was 2.7

Step-by-step explanation:

let original number be = x

x+20= 22.7

x=22.7-20

x=2.7