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12 July, 23:00

What is the value y of 3x + y = 9 y = - 4x + 10

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  1. 12 July, 23:13
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    Step-by-step explanation:

    first of all, use substitution.

    3x + - 4x + 10 = 9

    Then move all x's to one side.

    10 = 9 + x

    Move all normal numbers to one side

    1 = x
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