Ответ:
x = 1/2
Пошаговое объяснение:
15/20-(x+1/20)=4/20
= 15/20 - х - 1/20
= 1/5 = 7/10 - х = 1/5
= - х = 1/5 - 7/10
= - х = 1/2
= х = 1/2
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Ответ:
x = 1/2
Пошаговое объяснение:
15/20-(x+1/20)=4/20
= 15/20 - х - 1/20
= 1/5 = 7/10 - х = 1/5
= - х = 1/5 - 7/10
= - х = 1/2
= х = 1/2