Question

-2x+x=l5-9l

How do i solve this and what do the bars mean?

Answer 1

the bars mean absolute value

Answer 2

Those are called MODS or Modulus.

What they do, they convert a negative number to a positive one.

Let's say: -5.

|-5| = 5

Answer 3

so it would= -5+9?

Answer 4

or 5+9?

Answer 5

it would be 5-9 but still in the bars
when you subtract 5 from 9 it becomes -4 and it is still in the bars therefore it becomes a positive 4
your equation would now be -2x+x=4

Answer 6

-2x+x=l5-9l

-2x + x = |-4|

-2x + x = +4