Question

1,7x-(0,2x+2y),если 4y-3x=6​

Answer 1

Ответ:

Пошаговое объяснение:

1,7х-(0,2х+2у)=-3

х(1,7-0,2)+2у=1,5х+2у

2у-1,5х=-3

Т.к. 4y - 3x = 6, то 1,5x - 2y = - 3

Answer 2

To find the value of the expression 1.7x - (0.2x + 2y) when the equation 4y - 3x = 6 is true, we first need to find the values of x and y that satisfy the equation. Once we have the values of x and y, we can substitute them into the expression to get the result.

Let's start by solving the given equation 4y - 3x = 6 for either x or y. We'll solve for y:

4y - 3x = 6

Now, isolate y:

4y = 3x + 6

Next, divide both sides by 4 to get y:

y = (3x + 6) / 4

Now that we have an expression for y in terms of x, we can substitute this value of y into the expression 1.7x - (0.2x + 2y):

1.7x - (0.2x + 2 * ((3x + 6) / 4))

Now, simplify the expression:

1.7x - 0.2x - (3x + 6) / 2

Combine the x terms:

(1.7 - 0.2)x - (3x + 6) / 2

Now, find the common denominator for the second term:

(1.5)x - (3x + 6) / 2

Now, find a common denominator for both terms:

(2 * 1.5)x - (3x + 6) / 2

3x - (3x + 6) / 2

Now, get a common denominator for both terms:

(2 * 3x - (3x + 6)) / 2

(6x - 3x - 6) / 2

(3x - 6) / 2

Finally, simplify the expression:

(3/2)x - 3

So, the value of the expression 1.7x - (0.2x + 2y) when 4y - 3x = 6 is true is:

(3/2)x - 3