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31.08.2019 •
Mathematics
By what number should we multiply -3÷4so that the product will be -7÷8⛄
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Ответ:
-(3/4)*x = -(7/8)
x = -(7/8)/-(3/4)
x = 7/8 * 4/3
x = 7/6
The number = 7/6
Ответ:
x+y=1695
5x+8y=11,190
8x+8y=13560
5x+8y=11,190
3x= 2370
x= 790
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