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Mathematics - Algebra - Linear Equations

Solve by substitution or elimination method:
3x - 2y = 8
-12x + 8y = 32
2. Solve by substitution or elimination method:
7x - 5y = 14
-4x + y = 27
3. Solve by substitution or elimination method:
-4x + 3y = 5
12x - 9y = -15

1. Plot the graph of the equations 3x - 8y = 5 and 4x - 2y = 11 and interpret the result.
2. Plot the graph of the equations 4x - 6y = 2 and 2x - 3y = 1 and interpret the result.
3. Plot the graph of the equations 10x - 4y = 3 and 5x - 2y = 6 and interpret the result.

Solution Preview

(1) Multiply the first equation by 4 and add up with the second. We get 12x - 8y - 12x + 8y = 32 + 32

0 = 64, which is absurd.

This means the system is ...

Solution Summary

A complete, Neat and Step-by-step Solution is provided in the attached file.

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