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avahrider1
04.07.2020 •
Mathematics
X+y=c x/y=p/q please find x and y
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Ответ:
Below in bold.
Step-by-step explanation:
x + y = c
x/y = p/q
From the first equation y = c - x
So substituting in the second equation:
x / c -x = p/q
pc - px = qx
qx + px = pc
x = pc /(p +q)
Now substitute for x in the first equation:
pc /(p +q) + y = c
y = c - pc/ (p + q)
y = pc + qc - pc)/ (p + q)
y = qc / (p+ q).
Ответ:
4
Step-by-step explanation:
Hope this helped