I need to find the answer by 12am help plz

x = 7.57894737 or 7.6  

Step-by-step explanation:

1. The First step in this is understanding certain types of angles.

The one you will need to know here is a supplementary angle:

    Either of 2 angles who's sum is 180 degrees.

Looking at the image there is a supplementary angles at the intersection area where C is located on line ET. Therefore you do the math for that

180 (degrees) - 118 (degrees) = 62 degrees

2. Now you found a missing angle within your triangle (62 degrees). Your next step is understanding the triangle itself.

    A triangle's sum is 180 degrees

Knowing this you can create an equation that defines it such as the following:

62(degrees) + 10x + 9x+4 = 180degrees

3. SOLVE FOR X

62 + 10x + 9x + 4 = 180         1. Combine Like Terms

66 + 19x = 180                       2. Put Common Like Terms on Same Side                    

                                                   (Subtract 66)

19x = 144                                 3. Divide to make into 1 "x"

x = 7.57894737 or 7.6    

x=-2?

Step-by-step explanation:

10(x+3)-(-9x-4)=x-5+3. or 10x+30+9x+4=x-2.or 19x-x=-2-30-4?

i hope this is what you were looking for.

see attached graph