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DaviPCunha
@DaviPCunha
August 2019
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Determine a raíz de cada equação (cálculo em todas):
a) 2x +3 = 3x + 23
b)5x - 2 = 2x + 7
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caio0202
Verified answer
A)
2x + 3 = 3x + 23
2x - 3x = 23 - 3
- x = 20 (-1)
x = - 20
b)
5x - 2 = 2x + 7
5x - 2x = 7 + 2
3x = 9
x = 9/3
x = 3
1 votes
Thanks 2
marianasilva39
Verified answer
A)2x+3=3x+23
2x-3x=23-3
-x=20 (-1)
x= -20
B)5x-2=2x+7
5x-2x=7+2
3x=9
x=9/3
x=3
1 votes
Thanks 1
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Verified answer
A)2x + 3 = 3x + 23
2x - 3x = 23 - 3
- x = 20 (-1)
x = - 20
b)
5x - 2 = 2x + 7
5x - 2x = 7 + 2
3x = 9
x = 9/3
x = 3
Verified answer
A)2x+3=3x+232x-3x=23-3
-x=20 (-1)
x= -20
B)5x-2=2x+7
5x-2x=7+2
3x=9
x=9/3
x=3