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Melissadelldp4s0mj
@Melissadelldp4s0mj
May 2019
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A equação 1-(x-1/2) = x- (x+2/3) é verificada para
a) x=-7
b) x= -1/7
c) x=7/13
d) x=13/7
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rbgrijo2011
1 -(x-1/2) = x- (x+2/3) ===> *(6) mmc
6 -3(x-1) = 6x -2(x+2)
6 -3x+3 = 6x -2x-4
9 -3x = 4x -4
-3x -4x = -4 -9
-7x = -13 ===> *(-1)
7x = 13
x = 13/7 ✓
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Lista de comentários
6 -3(x-1) = 6x -2(x+2)
6 -3x+3 = 6x -2x-4
9 -3x = 4x -4
-3x -4x = -4 -9
-7x = -13 ===> *(-1)
7x = 13
x = 13/7 ✓