15. What value of x makes this equation true?

Answer:
33
Step-by-step explanation:
I used Trial and Error and 33 is the only whole number that went in to replace x.
Answer:
C: 33
Step-by-step explanation:
[tex]\frac{x}{3} -7 = \frac{x}{11} +1\\\\(\frac{11}{11} * \frac{x}{3} ) -7 = (\frac{3}{3} * \frac{x}{11}) +1\\[/tex]
[tex]\frac{11x}{33} -7 = \frac{3x}{33} +1[/tex]
[tex]\frac{11x}{33} - \frac{3x}{33} = 1 + 8[/tex]
[tex]\frac{8x}{33} = \frac{8*33}{33} \\\frac{8x}{33} = \frac{264}{33} / :33\\8x= 264\\x = 264/8\\\\x= 33[/tex]