Answer:
3.4
Explanation:
my number divided by 0.1 is 23 less then 57...
let n represent the number
n / 0.1 = 57 - 23
n / 0.1 = 34...multiply both sides by 0.1, cancelling it on the left side
n = 34 * 0.1
n = 3.4 <===
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