arslza6
06.10.2019 •
Mathematics
(8x+4) - (3x-12)
a. -5x - 16
b. 11x - 8
c. 5x + 16
d. 5x - 16
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Ответ:
8x-3x = 5x
4-12= -8
5x-8
Ответ:
-x + y = 5; -2x + y = 4
-x + y = 5 -> y = x + 5
-2x + y = 4 -> y = 2x + 4