A "+" before parentheses means + 1 times everything inside, so +(a+b-c) means +a+b-c
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parentheses two times nine parentheses times negative eight minutes four parentheses four plus hundred plus eight
It is: 3n-21+4n+8 = 7n-13 simplified
(5.9x^3 + 3.4x^2 - 7) - (2.9x^3 - 9.6x^2 + 3) = 3x^3 +13x^2 -10
84-12*2+5 in paretheses
It depends on whether or not there are parentheses around the 2x3. If yes, the answer is 26. If not, the answer is 48.