Ответ:
20:x=10:7
x=20×7/10=14
20 10
__ = __
× 7
10x=140
x = 140
__
10
x = 14
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Ответ:
20:x=10:7
x=20×7/10=14
Ответ:
20 10
__ = __
× 7
10x=140
x = 140
__
10
x = 14