2 is subtract from four times a number result in 30 . which of the following equation represent this ? a) 4x - 2x = 30 , b) 4x - 2= 30 , c 4x - 4x = 30
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b) 4x-2=30
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12 is a solution of the equation 4x – 5 = 3x + 10 . ... 2x = 4 or x = 2. Example 15 : 1 subtracted from one third of a number gives 1. ... The sum of two numbers is 60 and their difference is 30.
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