C)3
2х – 14 = 20
2x - 14 = 20
2x = 34
x = 17
3х + 3b = 60
3x + 3b = 60
51 + 3b = 60
3b = 9
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C)3
2х – 14 = 20
2x - 14 = 20
2x = 34
x = 17
3х + 3b = 60
3x + 3b = 60
51 + 3b = 60
3b = 9