Question

10) Solve using any method 10x+2y=42 5x+y=20

Answer 1

The answer is no solution! Using substitution, you come to 20 = -21, which is a false statement.

Answer 2

Answer:

no solutions

Step-by-step explanation:

10x+2y=42

5x+y=20

Multiply the second equation by -2 to use elimination

-2(5x+y)=20*-2

-10x -2y = -40

Add this to the first equation

10x+2y=42

-10x -2y = -40

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0 = 2

This is never true.  This means there are no solutions