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4 April, 16:16

Solve the system of equations 5x-2y=18 and 3x+3y=15

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  1. 4 April, 16:42
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    first one: y = 2.5x - 9

    second one: y = - x + 5

    Step-by-step explanation:

    First you have to get y by its self, you have to move it to one side of the equals sign. So it is now:

    -2y = - 5x + 18

    Now you can divide it all by - 2,

    y = 2.5x - 9

    18 turned into a negative 9 because it was divided by a negative.

    Then repeat the same thing for the second one:

    3y = - 3x + 15

    y = - x + 5
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