03-02-2017
Mathematics

contestada

Four times the sum of a number and three is seven times the number decreased by three what is the number

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Xander4D Xander4D

03-02-2017

4(A+3) = 7A -3
4A +12 = 7A -3
7A -4A = 12+3
3A = 15
A = 5

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