Answer: 5x - 1
Step-by-step explanation: 3x + 2x = 5x and -6 + 5 = -1, so 5x - 1.
Answer:

Step-by-step explanation:
$1800 is spent on a washing machine. This number never changes, so we just need to add that to our annual total
$89 is spent every year. This means that this number needs to be with our variable, x, as it is dependent on the number of years that occur. When we put these two things together, we get the following equation:

Answer:x= 6.6667 I think
Step-by-step explanation:
Step-by-step explanation:
Think of it as a ratio problem.
Tom gets his haircut every 4 weeks and David gets his haircut every 6 weeks. So you can write it as 4:6.
The easiest way that I know of to do this is to find multiples.
4: 4x2=8 4x3=12
6: 6x2=12
So the twelfth week they will get their haircuts the same day.
Answer:
8/11
Step-by-step explanation:
2 2/3 = 8/3
8/3 x 3/11 = 24/33
24/33 = 8/11