Question

Qual o valor das somas algébricas
a)-5 + 3
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6 4

b)-3 - 1
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8 12

c)+7 - 2
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9 3

d) - 2 + 2
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5

e) - 3 - 7
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3

Answer 1

a) -2
b) -12
c) 1
d) 8
e) -24