Question

4(5х-2у) -7(3х-4) если 3х - х = 2,0ПОМОГИТЕ!!!!​

Answer 1

Ответ:

$4(5x-2y) -7(3x-4) = 20x-8y - 21x +28 = -x-8y+28$

Если $3x - x = 2,0$, то:

$2x = 2,0\\x = 1$

Подставляем значение x в уравнение:

$-1 - 8y +28 = -8y+27 \\-8y = -27\\y = \frac{27}{8}$

ОТВЕТ: x = 1; y = 27/8;

Answer 2

I can help you with your math problem.

First, let's simplify the equation 3x - x = 2.0 by subtracting x from both sides. We get 2x = 2.0, and then dividing both sides by 2, we get x = 1.0.

Now, we can substitute x = 1.0 into the expression 4(5x - 2y) - 7(3x - 4) and simplify it. We get:

4(5(1.0) - 2y) - 7(3(1.0) - 4) = 4(5 - 2y) - 7(3 - 4) = 20 - 8y - 21 + 28 = 27 - 8y

Therefore, the final answer is 27 - 8y.Ответь+подробно.++4(5х-2у)+-7(3х-4)+если+3х+-+х+=+2,0ПОМОГИТЕ!!!!​+