Question

Find the solution of equations -x+5y=30 10x-5y=-75

Answer 1

Answer:

The solution set would be (-5, 7)

Step-by-step explanation:

To find the solution to the system. simply add them together. This will cause y to cancel and allow you to solve for x.

-x + 5y = 30

10x - 5y = -75

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9x = -45

x = -5

Now we can place that value into either equation and solve for y.

-x + 5y = 30

-(-5) + 5y = 30

5 + 5y = 30

5y = 35

y = 7