2 286 ÷ ( 9х - 620 ) = 18
9х - 620 = 2 286 ÷ 18
9х - 620 = 127
9х = 620 + 127
9х = 747
х = 747 ÷ 9
х = 83
Ответ: 83.
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2 286 ÷ ( 9х - 620 ) = 18
9х - 620 = 2 286 ÷ 18
9х - 620 = 127
9х = 620 + 127
9х = 747
х = 747 ÷ 9
х = 83
Ответ: 83.