Question

B) -10-[+11+(-10-6)+1] c) 18-(+14+15)-[+13-(+16-21)]. D) -(-22)-[+29+(+27-23-26)-28]

Answer 1

-10-[+11+(-10-6)+1] = -10-[+11-16+1]=> -10-[-4]=> -10+4 ==> - 6
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c) 18-(+14+15)-[+13-(+16-21)] = 18-(+29)-[+13-(-5)]=> 18-29-[+13+5]

-11 - 18 ==> - 29
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D) -(-22)-[+29+(+27-23-26)-28] = +22-[+29+(-22)-28] = +22-[+29-22-28] 

+22-[-21] ==> + 22 + 21 ==> + 43