Question

determine o valor numerico 5m + 2 X para os seguntes casos:
a) m= 2 e x=3
b) m=4 e x = - 7
c )m= - 4 e x=9
d) m= -1 e x = -2
e) m= 8 e x = - 10
f)m= 3 e x = 2

Answer 1

VN = 5m + 2x         m = 2      x = 3
VN = 5.2 + 2.3
VN = 10 + 6
VN = 16
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VN = 5m + 2x          m = 4        x = - 7
VN = 5.5 + 2.(-7)
VN = 25 - 14
VN = 11
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VN = 5m + 2x         m = - 4        x = 9
VN = 5.(-4) + 2.9
VN = - 20 + 18
VN = - 2
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VN = 5m + 2x            m = - 1        x = - 2
VN = 5.(-1) + 2.(-2)
VN = - 5 - 4
VN = - 9
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VN = 5m + 2x          m = 8         x = - 10
VN = 5.8 + 2.(-10)
VN = 40 - 20
VN = 20
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VN = 5m + 2x          m = 3        x = 2
VN = 5.3 + 2.2
VN = 15 + 4
VN = 19