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bobk1433
26.06.2019 •
Mathematics
Yuri wrote twice as many poems as xenia. yuri wrote 3 more poems than xenia. the number of poems written can be represented by the system of equations: y=2x and y=x+3
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Ответ:
y = 2x and y = x + 3
2x = x + 3
x = 3
y = 2*3 = 6 or y = 3 + 3 = 6
yuri wrote 6 and xenia wrote 3 poems
Ответ:
-45 - 9n = -81
-9n = -81 + 45
-9n = -36
n = -36/-9
n = 4
Hope this helps you. :)