Решите уравнение, пожалуйста )
1)
19/27 - x - 10/27 = 2/27
9/27 - x = 2/27
x = 9/27 - 2/27
x = 7/27
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2)
8/15 + x = 8/15
x = 8/15 - 8/15
x = 0
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3)
5/9 + x = 7/9
x = 7/9 - 5/9
x = 2/9
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