Answer:
36
Step-by-step explanation:
Flip your eq. x/3 + 6 = 18.
Solve (Number on one, variable on other)
+6 -6 = 0. 18-6=12.
Multiply.
12 * 3 = 36.
Answer:

Step-by-step explanation:
=> 
Collecting like terms and expanding the brackets
=> 
=> 
=> 
=> 
77/12 or 6 5/12
Explanation:
1.) Convert the mixed number to a improper fraction.
2.) You’ll get 55/6 — 11/4.
3.) Subtract the Fractions.
4.) Then you’ll get 77/22 or 6 5/12.
Well the all paid 10.35×3=31.05 with the tip. The tip is 35.05/100×15=4.6575. To know how much they paid without the tip you just 31.05-4.6575=26.39