Question

4) 0,4х + 3,8 = 2,6 - 0,8х; 5) 6,8 – 1,3х = 0,6х – 2,7;

Answer 1

Ответ:

4) 0,4х + 3,8 = 2,6 - 0,8х;

0,4х +0,8х =2,6-3,8

1,2х=-1,2

х=-1

5)6,8 – 1,3х = 0,6х – 2,7

-1,3х-0,6х=-2,7-6,8

-1,9х=-9,5

х=5

Answer 2

Ответ:

4) 0.4х+3.8=2.6-0.8х

0.4х+ 0.8х= 2.6- 3.8

1.2х=- 1.2

х=-1,2:1,2

х=-1

5) 6.8-1,3х=0.6х-2,7

-1,3х-0,6х=-2,7-6,8

-1,9х=-9.5

х=-9.5:-1,9

х=5

Answer 3

To solve the given linear equations, we'll isolate the variable $x$ by performing appropriate operations to both sides of the equation. Let's solve each equation step by step:

Equation 1: $0.4x + 3.8 = 2.6 - 0.8x$

Step 1: Get $x$ terms on one side and constants on the other side.

$$0.4x + 0.8x = 2.6 - 3.8$$

Step 2: Combine like terms.

$$1.2x = -1.2$$

Step 3: Divide both sides by 1.2 to solve for $x$.

x = \frac{-1.2}{1.2} = -1 ### Equation 2: \( 6.8 - 1.3x = 0.6x - 2.7 \) Step 1: Get \( x \) terms on one side and constants on the other side. \[ 1.3x + 0.6x = 6.8 + 2.7

Step 2: Combine like terms.

$$1.9x = 9.5$$

Step 3: Divide both sides by 1.9 to solve for $x$.

$$x = \frac{9.5}{1.9} = 5$$