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12 July, 12:27

How do you work out this math problem? 3x+5+2x=12+4x

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  1. 12 July, 12:48
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    Let's start by just simplifying the equation.

    3x+5+2x=12+4x becomes 5x+5=12+4x

    Now, we want all our X's on one side of the equation. We accomplish this by substracting the smaller x value from the larger x value.

    5x-4x=x

    x+5=12

    Finally, we make sure the x is by itself

    12-5 = 7

    x=7
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