Question

Solve for x. 3x+9=15x-5. show work

Answer 1

Sol:

3x-15x=-5-9

or,-12x=-14

or,x=14/12

or,x=1.667

so, x=1.667

Answer 2

`3x+9=15x-5`

`3x+9-9=15x-5-9`

`3x=15x-14`

`3x-15x=15x-14-15x`

`-12x=-14`

`(-12x)/(-12)=(-14)/(-12)`

`x=(7)/(6)`

or

`x=1.1666`