Simplifique as expressões algébricas. A) a+1+2a B) 3b3-b3+2b3 C) 4 (c-1)-c D) 2d+4/2
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A) a+1+2a
2a+a+1
3a+1
3a=-1
a=_1/3
B) 3b3-b3+2b3
2b3+2b3=4b3
C) 4 (c-1)-c
4c-4-c
4c-c-4
3c-4
3c=4
c=4/3
D) 2d+4/2
2d+2
2d=2
d=2/2
d= 2
2a+a+1
3a+1
3a=-1
a=_1/3
B) 3b3-b3+2b3
2b3+2b3=4b3
C) 4 (c-1)-c
4c-4-c
4c-c-4
3c-4
3c=4
c=4/3
D) 2d+4/2
2d+2
2d=2
d=2/2
d= 2
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