GED Math Review: Solving Systems by Elimination

Questions:

A. Solve each system by adding or subtracting. Check your answer.

1. 
   
   Solution:____________
2. 
   
   Solution:____________
3. 
   
   Solution:____________
4. 
   
   Solution:____________
   
   B. Solve each system by multiplying. Check your answer.
5. 
   
   Solution:____________
6. 
   
   Solution:____________
7. 
   
   Solution:____________
8. 
   
   Solution:____________
9. 
   
   Solution:____________
10. 
    
    Solution:____________

Answer:

1. (1, 2)
2. (-2, -2)
3. (5, 4)
4. infinitely many solutions
5. (3, 4)
6. (6, -2)
7. (-1, 5)
8. (-2, -4)
9. (2, -7)
10. no solution

Reference:

Complete Test Preparation for the GED Test 2014 by Steck-Vaughn