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12.08.2020 •
Mathematics
Whats a negative times a positive times a negative?
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Ответ:
Positive
Step-by-step explanation:
negative times negative is postive positive times negative is negative
Ответ:
S= 31
T= 82
U= 67
U = 180 - 113
67 + (2x - 9) + (4x + 2) = 180
6x + 60 = 180
6x = 120
X = 20
Sub 20 for x in equations
S = 2(20) -9 = 31
T = 4(20) + 2 = 82
31 + 82 + 67 = 180