Question

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Answer 1

Remember you can always check your solutions by plugging the numbers back in. 4 for x and 5 for y.

Answer 2

@mathdude69 Is saying that you can put

(x,y)=(4,5)

In your equations and check if

LHS=RHS

Answer 3

if left hand side=right hand side your answer is correct :)

Answer 4

Thank you!

Answer 5

Welcome @pinkmommy :)