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Раскрой скобки и упрости выражения.
a)n + (n + 5) + (n + 8) =
(n - 5) + (n - 3) + (n + 4)
(n - 2) + (n - 9) + 2n + (n + 8) =
6)(p - 8) - (p + 8) = p - 8 - - 8 =
(p + 12) - (p - 12) =
- (p - 7) + (p + 7) =
Раскрой скобки и упрости выражения.
a)n + (n + 5) + (n + 8) =
(n - 5) + (n - 3) + (n + 4)
(n - 2) + (n - 9) + 2n + (n + 8) =
6)(p - 8) - (p + 8) = p - 8 - - 8 =
(p + 12) - (p - 12) =
- (p - 7) + (p + 7) =
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a)
n + (n + 5) + (n + 8) = n + n + 5 + n + 8 = 3n + 14
(n - 5) + (n - 3) + (n + 4) = n - 5 + n - 3 + n + 4 = 3n - 4
(n - 2) + (n - 9) + 2n + (n + 8) = n - 2 + n - 9 + 2n + n + 8 = 5n - 3
б)
(p - 8) - (p + 8) = p - 8 - p - 8 = - 16
(p + 12) - (p - 12) = p + 12 - p + 12 = 24
p - (p - 7) + (p + 7) = p - p + 7 + p + 7 = p + 14