madisonschwartz17 madisonschwartz17

06-11-2019
Mathematics

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Eight times the sum of a number and -2 is the same as nine times the number. Find the number

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Funkeheart Funkeheart

07-11-2019

Answer:

[tex]let \: the \: unknown \: number \: be \: x \\ 8 (x + (- 2) = 9 \times x \\ 8 (x - 2) = 9 \times x \\ 8x - 16 = 9x \\ - 16 = 9x - 8x \\ - 16 = x \\ x = - 16[/tex]

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