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5x plus 7 equals 3x-21

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โˆ™ 2015-07-15 14:50:23

Best Answer

5x+7=3x-21

-7= -7

5x=3x-14

-3x=-3x

2x=-14

2x/2x=2x/-14

x=-7

The Answer Is -7

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โˆ™ 2015-07-15 14:50:23
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