6. Solve using the addition principle.
2x + 6 48.0 – 7.2x
The solution set is { x | x > ? }

12. Solve using the addition and multiplication principles.
x/4 – 1 = 4/7
The solution set is { x | x = ? }

13. Solve.
4(2x-3) = 36
The solution set is { x | x = ? }

14. Solve.
6(3 + 4x) – 7 = 227
The solution set is { x | x = ? }

15. Solve.
2(4y – 8) = 3(4y + 5)
The solution set is { y | y ? ? }
Use set – builder notation to describe the complete solution.
I think the answer should look like this. {y |y = 5 (for example)
Should be 2 answers.

16. Translate to inequality
A number is at least 14
The answer is ? ? ?
Use x as the variable. Should be 3 answers.

17. Translate to an inequality. Use the variable x.
The number of people in the class in the chess club is less than or equal to 11.
The answer is ? ? ?

18. Translate to an inequality
The average speed, s, was between 70 and 130 mph.
Translation: 70 ? s ? 130

19. Translate to an inequality. Use the variable x.
The price of a baseball glove is most $41.99.
The answer is ? ? $?

20. Translate to an inequality. Use the variable x.
The price of an amusement park ticket is greater than or equal to $25.
The inequality is ? ? $?
Pust the variable on the left side of the inequality.

23. A metal stays solid at Fahrenheit temperatures below
1599.5. Determine in terms of an inequality those Celsius temperatures for which the metal stays solid. Use the formula
F = 9/5C + 32
The solution set is {C|C