Respuesta :

9 = 1 + 8x - 8

Add 8 to both sides:
17 = 1 + 8x

Minus 1 on both sides:
16 = 8x

Divide both sides by 8
2 = x

Hope it helped :)
the answer is 2x add 8 to both sides you get 18 subtract one get 16  divide by 2 and get 8

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