Dentro do conjunto universo IR resolva as equações
a) 21/5 - 4 = 1/4 + 2
b) m/2 - 1 = m/3 + 1/3
c) x/3 + x/4 + 5 = x
d) x - 4 - x+4/3
e) x-8/2 = x-4/3
f) 4x/3 - 3/2 = x-3/3
a) 21/5 - 4 = 1/4 + 2
b) m/2 - 1 = m/3 + 1/3
c) x/3 + x/4 + 5 = x
d) x - 4 - x+4/3
e) x-8/2 = x-4/3
f) 4x/3 - 3/2 = x-3/3
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b)
m/2-m/3 = 4/3
(3m-2m)/6 = 4/3
m/6 = 4/3
m = 8
c)
x/3 + x/4 -x = -5
(4x + 3x - 12x) / 12 = -5
-5x / 12 = -5
-5x = -60
5x = 60
x = 12
d) Grafia incorreta
e) Grafia incorreta
f )
4x/3 - x = 3/2 - 1
(4x - 3x) / 3 = (3-2) / 2
x/3 = 1/2
x = 3/2