Răspuns:
Explicație pas cu pas:
2a.
11/(2x - 1) > 1
11 > 2x - 1
2x < 11 + 1
2x < 12
x < 6
x = {0, 1, 2, 3, 4, 5}
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b.
(2x + 7)/(3x - 3) = 1
2x + 7 = 3x - 3
3x - 2x = 7 + 3
x = 10
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3.
42/56 = 6/8 = 3/4
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39/52 = 3/4
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55/121 = 5/11
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18/45 = 2/5
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72/96 = 36/48 = 9/12 = 3/4
