Question

|3x-4|+|9x-12|=12x

x=??

Answer 1

3x-4+9x-12=12x
0=-16
no solution

Answer 2

oh so i can just collect like terms?

Answer 3

when u collect them the x terms add up to zero

Answer 4

The equation |3x-4|+|9x-12|=12x


Breaks down into the following 4 equations


(3x-4)+(9x-12)=12x

or

-(3x-4)+(9x-12)=12x


or


-(3x-4)-(9x-12)=12x


or


(3x-4)-(9x-12)=12x


Solve each equation for x and remember to check your answers.

Answer 5

do i collect like terms to solve each eqn for x?:S

Answer 6

yes, you would solve each equation individually as you normally would with any linear equation.

Answer 7

oh ok thanks