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11-09-2015
Mathematics

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What is the value of x? 4(6 + 7) = 4 • 6 + x • 7

Respuesta :

11-09-2015

4(6 + 7) = 4 * 6 + x * 7

4(6) + 4(7) = 4 * 6 + x * 7

24 + 28 = 4 * 6 + x * 7

24 + 28 = 24 + x * 7 (subtract each side by 24)
-24 -24

28 = x * 7 (divide each side by 7)

28/7 = x

4 = x

The value of x is 4

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