migos2377
30.11.2020 •
Mathematics
27(n+4)+18n=7(n-18)-40n So confused can yall help me?
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Ответ:
n = -3
Step-by-step explanation:
distribute
27n + 108 + 18n = 7n - 126 - 40n
combine
45n + 108 = -33n - 126
add 33n to both sides and subtract 108 to both sides
78n = -234
divide by 78
n = -3
Ответ:
f(x)=2x^2
g(x)=-x^2-5x-1
the intersection points are the solutions
the x values are the solutions
answer is 3