Jose7luis
Jose7luis Jose7luis
  • 01-05-2020
  • Mathematics
contestada

Three more than a certain number is
18 less than twice the number.
What is the number?

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Hacktag17
Hacktag17 Hacktag17
  • 01-05-2020

i don't have an answer sorry.

Answer Link
Chelboy
Chelboy Chelboy
  • 01-05-2020

Answer:

Then number is 21

Step-by-step explanation:

a+3=2a-18

Collect like terms we have

2a-a=3+18

a=21

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