Tree times a number increased by 12 is equal to five times the number decreased by 18....

Question

Tree times a number increased by 12 is equal to five times the number decreased by 18. Find the number​

Comments

решение

Answer 1

Ответ:

15

Объяснение:

let n = number

3n + 12 = 5n - 18

3n-5n = -18-12

-2n=-30

n=15