Question

How do you solve `\frac { x } { 5} + \frac { x } { 3} = - \frac { 12} { 9}`?

Answer 1

`x=-5/2`

Explanation:

LCD of 5, 3, and 9 is 45.
`(9x)/45 + (15x)/45 = -60/45`
`(24x)/45 = -60/45`
`24x=-60`
`x=-60/24 = -5/2`