Question

RESOLVA AS EQUAÇÕES:
A) x/3 + x/2 = 7+x/3
B) x-2/3 + 2x = 5x/2
C) x-5/3 + 3x-1/2 = 4
D) x-1/5 = x - 2x-1/3

Answer 1

a) 2x/6 + 3x/6 = 42/6 + 2x/6
5x/6 - 2x/6 = 42/6
3x/6 = 42/6
x = 14
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b) 6x/6 - 4/6 + 12x/6 = 15x/6
18x/6 - 15x/6 = 4/6
3x/6 = 4/6
x = 4/3
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c) 6x/6 - 10/6 + 18x/6 - 3/6 = 24/6
24x/6 = 24/6 + 13/6
24x/6 = 37/6
x = 37/24
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d) 15x/ 15 - 3/15 = 15x/15 -30x/15 - 5/15
15x/15 + 15x/15 = -5/15 + 3/15
30x/15 = -2/15
x = - 1/15