2:9(0,45-2,7у)-2:17(0,51-3,4у)=0,16

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вопрос

To solve this expression, we need to calculate each division separately and then subtract the results.

First, let's calculate 2:9(0.45 - 2.7):
2/9 * (-2.25) = -0.5

Next, let's calculate 2:17(0.51 - 3.4):
2/17 * (-2.89) = -0.34

Finally, subtract the two results:
-0.5 -(-0.34) = -0.16

Therefore, 2:9(0.45 - 2.7) - 2:17(0.51 - 3.4) = -0.16.