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12-09-2020
Mathematics

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4 times the sum of a number and 5 is 1 less than the same number

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Cytokine Cytokine

12-09-2020

x = a number

4(x + 5) = x - 1

Now, let's distribute the 4

4x + 20 = x - 1

Subtract x and 20 from both sides.

3x = -21

Divide both sides by 3

x = -7

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