Question

9+12m=6+15(m-1) simplifies At how many months the prices are the same

Answer 1

m=6

Explanation:

We are given that an equation

`9+12m=6+15(m-1)`

We have to find the value of m for which prices are the same.

`9+12m=6+15m-15`

`9-6+12m=15m-15`

Using subtractive property of equality

`3+12m+15=15m`

Using addition property of equality

`12m+18=15m`

`18=15m-12m`

Using subtractive property of equality

`18=3m`

`m=(18)/(3)=6`

Using division property of equality