Question

How do you solve -5x - 3y = 5 and 5x - 5y = -5?

Answer 1

`x = -1, y = 0`

Explanation:

`-5x - 3y = 5`
`5x -5y = -5`

"Add" both equations

`=> -8y = 0`

`=> y = 0`

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Using the obtained value of `y`, obtain the value of `x` using equation

`-5x - 3y = 5`
`-5x - 3(0) = 5`
`-5x = 5`
`x = -1`