(68,37-x)/6,15=8,2 60,8/(5,3х-2,15)=5

$(68,37-x)/6,15=8,2$

$68,37-x = 8,2 * 6,15$

$68,37-x=50,43$

$x = 68,37 - 50,43$

$x = 17,94$

Проверка:

$(68,37-17,94)/6,15=50,43 / 6,15= 8,2$
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$60,8/(5,3x-2,15)=5$

$5,3x-2,15=60,8/5$

$5,3x-2,15=12,16$

$5,3x = 12,16 + 2,15$

$5,3x = 14,31$

$x = 14,31 / 5,3$

$x = 2,7$

Проверка:

$60,8/(5,3 * 2,7-2,15)=60,8/(14,31 - 2,15) = 60,8/12,16 = 5$
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