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vfiekz [6]
3 years ago
13

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

Mathematics
1 answer:
Alik [6]3 years ago
5 0

Answer:

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

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