Question 1: Linear Equations
Solve for x :
5 x−8=27
A. 5
B. 6
C. 7
D. 8
Answer: C
Explanation
35
5 x=27+8=35 x= =7
5
Question 2: Systems of Equations
If
{x+x−yy=11
=3
what is the value of x ?
A. 4
B. 5
C. 6
D. 7
Answer: D
Explanation
Add the equations:
(x + y )+( x− y )=11+32 x=14x=7
Question 3: Exponents
Evaluate
3 4
2 ×2