Question

please give me the answer of the question

Answer 1

(a) 0
(b) -13-(-9)= -13+9= -4
(c) -50+(-7)+36-2 = -50-7+36= -57+36= -21
(d) {(4-7)-3} = -12+21= 9
Additive inverse of 9= 9× (-1)
(e) 0

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