Lalagrl
20.12.2019 •
Mathematics
6= -4x + y
-5x - y = 21
substitution
Solved
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Ответ:
y = 4x + 6
-5x - 4x - 6 = 21
-9x - 6 = 21
-9x = 27
x = -3
y - 4(-3) = 6
y + 12 = 6
y = -6
(-3, -6)
Ответ:
☃️ Hope this helps☃️