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

asked Nov 10, 2021 38.0k views

4 votes

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

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4 votes

i don't have an answer sorry.

Nitin Arora answered Nov 12, 2021

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4 votes

Answer:

Then number is 21

Explanation:

a+3=2a-18

Collect like terms we have

2a-a=3+18

a=21

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