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18 November, 13:50

Felisha is thinking of a number that is 3 times the value of Monique's number.

Felishas number is also 3 more than 4 times the value of Monique's number. What is Monique's number? Write and solve a system of equations to answer the question.

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  1. 18 November, 16:42
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    Y = 3x

    y = 4x + 3

    Both equal y, so you can do 3x = 4x + 3

    3x - 4x = 3

    -x = 3

    -x/-1 = 3/-1

    x = - 3

    You can check your work by plugging in x, so

    y = 3 (-3)

    y = 4 (-3) + 3

    y = - 9

    y = - 9
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Home » Mathematics » Felisha is thinking of a number that is 3 times the value of Monique's number. Felishas number is also 3 more than 4 times the value of Monique's number. What is Monique's number? Write and solve a system of equations to answer the question.
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