You have to fill in 3 for x so it woul look like 3x3-3 and that would be 6.
Attached the solution and work.
The answer would be: There were 2 chefs and 13 customers.
The LCM of 120 and 150 is 600
Answer:
a) x = -10
b) x = 7
Step-by-step explanation:
a)
2(x + 3) = x - 4
2x + 6 = x - 4
2x - x = -4 - 6
x = -10
b)
4(5x - 2) = 2(9x + 3)
20x - 8 = 18x + 6
20x - 18x = 6 + 8
2x = 14
x = 7
