Respuesta :
Let the number be n.
Adding a zero means multiplying the number by 10, 10n.
143-10n=3n, 13n=143 so n=11.
Adding a zero means multiplying the number by 10, 10n.
143-10n=3n, 13n=143 so n=11.
Answer:
11
Step-by-step explanation:
Let the number be x. If zero is added to the right of the number, this is equivalent to multiplying the number by 10
Hence x0 = 10x
143 - 10x = 3x
collect like terms
3x + 10x = 143
13x = 143
x = 143/13
x = 13
The number is 11.
