Resolva as equações
A) 9-x = 2x
B) 8+4x = 6x - 4
C) 3x + 1 = x + 9
D) 4x - 11 = 7 - 2x
E ) 3x + 1 = 5 + x
A) 9-x = 2x
B) 8+4x = 6x - 4
C) 3x + 1 = x + 9
D) 4x - 11 = 7 - 2x
E ) 3x + 1 = 5 + x
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x = 3
b) 6x -4x = 8 + 4
2x = 12
x = 6
c) 3x - x = 9 - 1
2x = 8
x = 4
d) 4x + 2x = 7 + 11
6x = 18
x = 3
e) 3x - x = 5 - 1
2x = 4
x = 2