Question

1/2 (4 - 3 1/2x)- 2/3 (2x + 8,1)

Answer 1

Ответ:

вроде бы так , переправьте ещё раз , вдруг у меня ошибки:)

Answer 2

To simplify the expression 1/2(4 - 3 1/2x) - 2/3(2x + 8.1), follow these steps:

Step 1: Distribute the constants on the outside of the parentheses to the terms inside the parentheses.

(1/2 * 4) - (1/2 * 3 1/2x) - (2/3 * 2x) - (2/3 * 8.1)

Step 2: Simplify each term separately.

1/2 * 4 = 2

1/2 * 3 1/2x = (3/2) * (7/2)x = (21/4)x

2/3 * 2x = (2/3) * (6/1)x = 4x

2/3 * 8.1 = (2/3) * 8.1 = 5.4

Step 3: Substitute the simplified terms back into the expression.

2 - (21/4)x - 4x - 5.4

Step 4: Combine like terms.

(-21/4)x - 4x = (-21/4 - 16/4)x = (-37/4)x

Now, the expression is simplified to:

2 - (-37/4)x - 5.4

Step 5: Combine the constants.

2 - 5.4 = -3.4

So, the simplified expression is:

-3.4 - (37/4)x