Question

3 (2,1 - у ) - 2,8 (2х - 3у)=?​

Answer 1

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Answer 2

To simplify the expression 3(2,1 - у) - 2.8(2x - 3у), you can distribute the constants and perform the operations as follows:

3(2.1 - у) - 2.8(2x - 3у)

First, distribute the constants:

(3 * 2.1 - 3 * у) - (2.8 * 2x - 2.8 * 3y)

Now, perform the multiplications:

(6.3 - 3у) - (5.6x - 8.4y)

Now, combine like terms by adding or subtracting the coefficients of the same variables:

6.3 - 5.6x - 3у + 8.4y

Combine the "y" terms:

6.3 - 5.6x + 5.4y

Now, the expression is simplified as much as possible:

-5.6x + 5.4y + 6.3