Respuesta :

wikk
3x + (x-8) = 23

Combine like terms first. You can combine 3x and x because they have the same variable.

4x - 8 = 23
Now add 8 to both sides.
4x = 31

Last step is to divide both sides by 4 to isolate the x.
4/4x = 31/4

x = 7.75 is the answer.