Name: 
 

Solving Systems by Substitution



Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

If the system mc001-1.jpg is to be solved by substitution, which expression can be replaced for x in the second equation?
A.
15 - 2y
C.
mc001-2.jpg
B.
21 - 5x
D.
mc001-3.jpg
 

 2. 

Solve the system mc002-1.jpg by substitution.
A.
(2, 7)
C.
(5, 1)
B.
(1, -1)
D.
none of these
 

 3. 

Use substitution to solve the system of equations.
mc003-1.jpg
A.
mc003-2.jpg
C.
mc003-4.jpg
B.
mc003-3.jpg
D.
no solution
 

 4. 

Which is the solution of this system of equations?

mc004-1.jpg
A.
(mc004-2.jpg7, 8)
B.
(mc004-3.jpg7, 6)
C.
There is no solution.
D.
There is an infinite number of solutions.
 

 5. 

Use substitution to solve the system of equations.
mc005-1.jpg
A.
mc005-2.jpg
C.
mc005-4.jpg
B.
mc005-3.jpg
D.
no solution
 



 
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