How do you solve \frac { - 1- 3x } { 4} - \frac { 2x + x } { 6} = \frac { 1} { 3}?

1 Answer
Dec 26, 2016

x=-7/15

Explanation:

frac(-1-3x)(4)-frac(2x+x)(6)=1/3

Multiply the equation by the LCD 12.

12*[frac(-1-3x)(4)-frac(2x+x)(6)=1/3]

12/4 * (-1-3x)-12/6*(2x+x)=12/3

3(-1-3x) -2(2x+x)=4

-3-9x-4x-2x=4

-15x-3=color(white)a4
color(white)(aaaaa)+3color(white)(a)+3

-15x=7

(-15x)/-15=7/-15

x=-7/15