
Directions: Grab paper and pencil. Solve these system problems algebraically, using either the susbstitution method or the elimination (addition/subtraction) method. Beware!! The Systems Analyst may, or may not, be helpful!
1. 
Solve and check this linear system algebraically:
y = x + 7
y = 2x + 1





2. 
Solve and check this linear system algebraically:
x + 2y = 12
2x  y = 4





3. 
Solve and check this linear system algebraically:
2a  2b = 6
5a  3b = 9





4. 
Solve and check this linear system algebraically:
13x + 10y = 14
x + 6y = 4





5. 
Which choice is the value of the ycoordinate of the solution to the system of equations:
x  3y = 3 and 2x + y = 8?




6. 
The substitution method is used to solve the following system of equations algebraically:
4x  2y = 6 and 3x + 2y = 8
Which equivalent equation may be used in this process?




7. 
Which choice is the solution to the system of equations:
y = 3x and y = 2x + 7 ?




8. 
Which choice is the solution to the system of equations:
2x + y = 6 and 2y = 4x  16 ?




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