Considerando a expressão algébrica 2x+24,calcule o valor númerico,quando:
A)×=2
B)×=-2
C)×=0
D)×=2,5
E)×=-1
F)×=1
A)×=2
B)×=-2
C)×=0
D)×=2,5
E)×=-1
F)×=1
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a) x=2 2(2)+24
4+24=28
b)x=-2 2(-2)+24
-4+24=20
c)x=0 2(0)+24
0+24=24
d)x=2,5 2(2,5)+24
5+24= 29
e)x=-1 2(-1)+24
-2+24=22
f)x=1 2(1)+24
2+24=26