Question

a) -12+26-8+15+23-20-25+10=

b) -5+(-6)-(-5)+(-9)-(+7)+(-10)+7-12=

c) [-6+(4+2)-(-9)]-[(-4)-(+7-5)+(-12)]+7-15=

d) 4+{[-7+(3+2)-(-2)]+[(-3)-(+8-8)+(-10)]}+10-3=

Answer 1

Respuesta:

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