spazzy86 spazzy86

10-01-2020
Mathematics

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Twice a number decreased by 72 is five times the sum of the number and three times the number

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texaschic101 texaschic101

10-01-2020

Answer:

Step-by-step explanation:

2x - 72 = 5(x + 3x)

2x - 72 = 5(4x)

2x - 72 = 20x

-72 = 20x - 2x

-72 = 18x

-72/18 = x

-4 = x

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