-3(0,2х+0,4у)+1,6х+2,8у)2

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вопрос

To simplify the given expression, we can distribute the -3 to both terms inside the parentheses:

-3(0.2x + 0.4y) = -0.6x - 1.2y

Now, we can add this result to the terms outside the parentheses:

-0.6x - 1.2y + 1.6x + 2.8y

Combining like terms:

(-0.6x + 1.6x) + (-1.2y + 2.8y)
= 1x + 1.6y
= x + 1.6y

So, the simplified expression is x + 1.6y.