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Option 1 - there is one solution : (0,-1)

Step-by-step explanation:

Given : The mechanism of equations and also

To discover : How plenty of solutions walk this linear system have?

Solution :

Let Equation (1),

Equation (2),

Applying substitution method,

Substitute y indigenous equation (1) into (2),

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Substitute in equation (1),

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Therefore, there is one systems : (0,-1)

So, option 1 is correct.

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