advanced algebra 1

Question

the product of 3 and a number increased by 5 is that number decreased by 7

Answer 1

Hi Erika C.

 

Let n represent your number

According to the information given

3n + 5 = n - 7

Just solve this for n

3n - n = -5 - 7

2n = -12

n = -12/2

n = -6

Checking in the original equations

3n + 5 = n - 7

3(-6) + 5 = -6 - 7

-18 + 5 = -6 - 7

-13 = - 13