Ajuda? 10 pontos. Resolva a equação?
a) x+2 =1 b) 3x = 3
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2 4 2
Update:a) x+2 =1
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3
b) 3x = 3
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4 2
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a) x+2 =1 b) 3x = 3
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2 4 2
Update:a) x+2 =1
-----
3
b) 3x = 3
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4 2
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Verified answer
Acho que são:
a) (x+2)/3 =1
x+2 = 1•3
x+2 = 3
x = 3-2
x = 1
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b) 3x/4 = 3/2
3x = 3•4/2 = 12/2 = 6
x = 6/3 = 2
a)
(x+2)/2=1
x+2=3
x=3-2
x=1
b)3x/4=3/2
6x=12
x=12/6
x=2