Answers please I'm desperate

-3x + 7 = 3x + 19

Transfer like numbers to the opposite side and change its signs.

-3x - 3x = 19 - 7
-6x = 12
-6x / -6 = 12 / -6    - divide both sides by -6 to find x.
x = -2

To check: substitute x with its value in the given equation.

-3x + 7 = 3x + 19
-3(-2) + 7 = 3 (-2) + 19
6 + 7 = -6 + 19
13 = 13  Value is correct.

-4x - 20 = 6x

-4x - 6x = 20  - transfer like numbers and change its signs
-10x = 20
-10x / -10 = 20 / -10      - divide both sides by -10 to find x
x = -2

To check: Substitute x by its value.

-4x - 20 = 6x

-4(-2) - 20 = 6 (-2)
8 - 20 = -12
-12 = -12  value is correct.

Quartile are numbers used to divide a set of data into four equal parts or quarter