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liyahheadhigh
26.03.2020 •
Mathematics
Find the number of terms in this polynomial.
–2c9 − c
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Ответ:
3x - y = 9
4x + y = 5
we add these two in order to eliminate y, thus,
7x = 14
x = 2
from equation 1, 3*2 - 9 = y ; y = -3. hence the solution set is equal to (2,-3). The answer to this problem would have to be C.