Respostas
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a)
3x + √3 = 2x - 1
3x - 2x = -1 - √3
x = -1 - √3
b)
x/5 + x/2 = 2/5
2x/10 + 5x/10 = 4/10
7x = 4
x = 4/7
c)
x/3 + √6 = -2x + 2
x/3 + 3√6/3 = -6x/3 + 6/3
7x = 6 - 3√6
x = (6 - 3√6)/7
d)
(x + 2)/5 + (x - 5)/2 = (x + 5)/5
2x + 4 + 5x - 25 = 2x + 10
5x = 10 + 25 - 4
5x = 31
x = 31/5
e)
2*(x + 5)/3 - 5(x - 3)/2 = (x + 3)/5
20x + 100 - 75x + 225 = 6x + 18
20x - 75x - 6x = 18 - 100 - 225
-61x = -307
x = 307/61
3x + √3 = 2x - 1
3x - 2x = -1 - √3
x = -1 - √3
b)
x/5 + x/2 = 2/5
2x/10 + 5x/10 = 4/10
7x = 4
x = 4/7
c)
x/3 + √6 = -2x + 2
x/3 + 3√6/3 = -6x/3 + 6/3
7x = 6 - 3√6
x = (6 - 3√6)/7
d)
(x + 2)/5 + (x - 5)/2 = (x + 5)/5
2x + 4 + 5x - 25 = 2x + 10
5x = 10 + 25 - 4
5x = 31
x = 31/5
e)
2*(x + 5)/3 - 5(x - 3)/2 = (x + 3)/5
20x + 100 - 75x + 225 = 6x + 18
20x - 75x - 6x = 18 - 100 - 225
-61x = -307
x = 307/61
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