Anonymous

8 times a number is the same as that number plus 84. What is the number?

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John McCann Profile
John McCann answered

That is algebra speak for....., ( X = number )

8X = X + 84

subtract an X from both sides

7X = 84

divide both sides integers by 7

X = 12

======Check.

8(12) = 12 + 84

96 = 96

======Checks.

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