Answer:
X=9
Step-by-step explanation:
Get the variables on one side by adding 3 to both sides making it
2x=18 divide it then by 2 getting X
c = 8 × 4.2 (move 8 from the denominator to the side where the 4.2 is - make c the subject)
c = 33.6
9x-8x=107
x=107
explanation is in image below
Its B
Answer:72
