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New! - Multiplication game - catch the hodag!


Adding and subtracting with negatives activity


Factoring Game


How to solve:
Solve the system:     6x + 3y = 12
8x + 9y = 26.
Solve the first equation (6x + 3y = 12) for y:
Click here to see how.
(In general, you just need to solve one of the equations for one of the variables.)
    y = -2x + 4
Substitute this expression for y into the second equation:     8x + 9(-2x + 4) = 26.
Simplify:     -10x + 36 = 26.
Solve for x:
Click here to see how.
    x= 1.
Substitute this value for x into one of the original equations:     6(1) + 3y = 12.
Solve for y:     y = 2.
Final Answer:     x = 1, y = 2.

Here's one to try:

      






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(Starts timer)
     




              





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