Question

Solve the system by elimination.

x+ 5y = -1
5x + 15y = 5

The solution is ( , )

Answer 1

x=4, y=-1. (4, -1).

Explanation:

x+5y=-1

5x+15y=5

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-5(x+5y)=-5(-1)

5x+15y=5

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-5x-25y=5

5x+15y=5

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-10y=10

y=10/-10

y=-1

x+5(-1)=-1

x-5=-1

x=-1+5

x=4