Write as a mathematical expression and solve. The sum of a number and 2 times the number is 21. Find the number.

Question

asked Feb 3, 2021 183k views

1 Answer

Admix · Answer 1 · 2021-02-08T21:54:47+0000

Answer:

x + 2x = 21

Or

3x = 21

Explanation:

Let the required number be x.

Two times of the number = 2x

Above statement in Mathematical form can be expressed as:

$x + 2x = 21 \\ \implies \: 3x = 21$