Math A

Practice with Algebraic Solutions to Simultaneous Equations

 

You will need paper and pencil to solve the following problems.  Solve these problems algebraically, using either the substitution or addition/subtraction method.

 

1.

Solve and check:

x + y = 1
x + 3y = 9


Answer   

 

 

2.

Solve and check:

3x + y = 13
x + 6y = -7


Answer   

 

 

3.

Solve and check:

5a - 2b = 3
2a - b = 0


Answer   

 

 

4.

Solve and check:

x  + 2y = 8
x  - 2y = 4


Answer   

 

 

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Roberts