Question

2. Calcule o valor de N, quando:
2.(+7)+5.(-2)
b) N-(-6).(-3) +2. (-6)
c) N = 3.(+8) - 7.(-7)
d) N=2(+10) + 5.(-2) - 10
e) N=3.(-1) - 5.(-1) + 4.(-1)
A N= 10 - (-1) + (-1). (+3) - 2.(+3) + 2
g) N= -4+(-1) - (45).(-3) - 4+7.(-2)
h) N = 8.(-5) - (-7). (+2) - 3 - 4.
.(-1) + 6

Answer 1

Resposta:Segue as contas abaixo na explicação

Explicação passo-a-passo:

a) N=2.(+7)+5.(-2)--->+14-10--->+4

b) N=(-6).(-3) +2.(-6)--->+18-12--->+6

c) N = 3.(+8) - 7.(-7)--->+24+49--->+73

d) N=2(+10) + 5.(-2) - 10--->+20+10-10--->+20

e) N=3.(-1) - 5.(-1) + 4.(-1)--->-3+5-4--->-7+5--->-2

A N= 10 - (-1) + (-1). (+3) - 2.(+3) + 2--->10+1-3-6+2--->+13-9--->+4

g) N= -4+(-1) - (45).(-3) - 4+7.(-2)-->-4-1+135-4-14--->-23+135--->+112

h) N = 8.(-5) - (-7). (+2) - 3 - 4.(-1) + 6--->-40+14-3+4+6--->-43+24--->-19