ALGEBRA
1. If 6x = 42 and xk = 2, what is the value of k?
2. If 4x + 5 = 13x + 4 – x – 9, then x = ?
3. If 3 – 3x < 20, which of the following could not be a value of x?
4. If 4xs = v, v = ks , and sv ≠ 0, which of the following is equal to k ?
5. If bx + c = e – ax, then what is x?
6. √( x2 -7) = 3 ; What is x?
7. √(3x) = 9 ; What is x?
8. √(8y) + 18 = 4 ; What is y?
9. If y = 4 and 6y = 10z + y, then z = ?
10. A sequence of numbers is: 2, 5, 8, 11. Assuming it follows the same pattern,
what would be the value of the 20th number?
11. The first four numbers of a sequence are 5, 10, 20, 40. Assuming the pattern
continues, what is the 6th term of the sequence?
12. If $ is defined for all numbers x and y to be x$y= 𝑥 2 − 2𝑥𝑦 , then what is 4$2
13. Solve x+2y=14 and 2x+y=13
14. Three consecutive even numbers add to 42. What is the middle number?
15. What is the value of (5 + x)(10 – y) when x = 3 and y = –3?
16. If x = 4, and y = 3x + 5, then 2y – 1 equals
17. Solve |3y−17|+12=49 .
18. If 3(a−6)=81, then a is equal to what?
19. Solve for x : (2x+3)−3(x+5)=−(3x−4)
20. 𝑥 = 1/2 ; What does 1/x + 1/(x + 4) equal?