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[tex] -3 \times - \: xy + 2y \: if \: x = 2 \: y = 1[/tex]
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Which is the correct equation?

-3x - xy + 2y

or

-3 * (- xy) + 2y

If Equation is:

-3x - xy + 2y

solve the equation if

x = 2

y = 1

Simply substitute the values of x and y in the given equation,

= -3x - xy + 2y

= -3(2) - (2)(1) + 2(1)

= -6 -2 + 2

= -6

If Equation is:

-3 * (- xy) + 2y

solve the equation if

x = 2

y = 1

Simply substitute the values of x and y in the given equation,

= -3 * (- xy) + 2y

= 3xy + 2y

= 3(2)(1) + 2(1)

= 6 + 2

= 8

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