Respostas

2013-10-25T00:15:37-02:00
25x + 3 = 1
25x = 1 - 3
25x = -2
x = \frac{-2}{25}
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3x-4=0
3x = 4
x = \frac{4}{3}
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15x+5=2
15x = 2 - 5
15x = -3
x = \frac{-3}{15} =\frac{-1}{5}
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15x-3=0
15x = 3
x = \frac{3}{15}=\frac{1}{5} 
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x-3=0
x = 3
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2x-3=0
2x = 3
x = \frac{3}{2}
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2013-10-25T00:24:15-02:00
25x+3=1
 25X=-2
 
x=−2/25

3x-4=0
3X=4 
X=4/3

15x+5=2
15x=-3
x=-3/15 simplificando
x=-1/5

15x-3=0
15x=3
x=3/15 simplificando
x=1/5

x-3=0
X=3

2x-3=0

2X=3
X=3/2