Question

4,37x-7,75=9,3x-6,7

Answer 1

Ответ:

0.213

Пошаговое объяснение:

4.37х-9.3х=7.75-6.7

-4.93х=1.05

х= 1.05/(-4.93)

х= 0.213

Answer 2

Ответ:

5x - 4y = 11; 2x + 4y = 10 - решать будем способом сложения, для этого почленно сложим уравнения системы;

(5x + 2x) + (- 4y + 4y) = 11 + 10;

7x + 0 = 21;

7x = 21;

x = 21 : 7;

x = 3 - подставим в любое из уравнений системы вместо х число 3 и найдем у, мы подставим во второе;

2 * 3 + 4y = 10;

6 + 4y = 10;

4y = 10 - 6;

4y = 4;

y = 4 : 4;

y = 1.

Ответ. (3 ; 1).

Пошаговое объяснение:

Answer 3

To solve the equation, we need to isolate the variable "x" on one side of the equation. Follow these steps:

Step 1: Move all the terms containing "x" to one side of the equation and the constant terms to the other side.

4.37x - 7.75 = 9.3x - 6.7

Step 2: To move the "9.3x" term to the left side, subtract "9.3x" from both sides of the equation.

4.37x - 9.3x - 7.75 = 9.3x - 9.3x - 6.7

This simplifies to:

-4.93x - 7.75 = -6.7

Step 3: Next, move the constant term "-7.75" to the right side of the equation by adding "7.75" to both sides.

-4.93x - 7.75 + 7.75 = -6.7 + 7.75

This simplifies to:

-4.93x = 1.05

Step 4: Finally, solve for "x" by dividing both sides by the coefficient of "x," which is "-4.93".

x = 1.05 / (-4.93)

x ≈ -0.213 (rounded to three decimal places)

So, the solution to the equation is approximately x = -0.213.