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4X - 7 = 31

add 7 to each side

4X - 7 + 7 = 31 + 7

4X = 38

divide both sides integers by 4

(4/4)X = 38/4

X = 38/4 = 19/2

--------------------------reduced, check in original equation

4(19/2) - 7 = 31

76/2 - 7 = 31

38 - 7 = 31

31 = 31

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โˆ™ 2011-10-14 01:12:45
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Q: How do you solve 4x-7 equals 31?
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