Question

2,8(3+0,5x)-1,3=23,9​

Answer 1

Ответ:

12

Пошаговое объяснение:

8.4 + 1.4x - 1.3 = 23.9

1.4x = 16.8

X = 16.8 / 1.4

X = 12

Answer 2

Ответ:

х=12

Пошаговое объяснение:

відкриваємо дужки

2.8×3+2.8×0,5х-1.3=23.9

виконали дії

8.4+1.4х=25.2

перенесли 8.4 вправо

1.4х=16.8

16.8÷1.4=12

х=12

Answer 3

To solve the equation 2.8(3 + 0.5x) - 1.3 = 23.9, you can follow these steps:

1. Start by distributing the 2.8 on the left side of the equation: 2.8 * 3 + 2.8 * 0.5x - 1.3 = 23.9

2. Simplify the equation by performing the multiplications: 8.4 + 1.4x - 1.3 = 23.9

3. Now, combine like terms by adding and subtracting on both sides of the equation: 8.4 - 1.3 + 1.4x = 23.9 - 1.3

4. Simplify the constants on both sides: 7.1 + 1.4x = 22.6

5. To isolate the variable x, subtract 7.1 from both sides of the equation: 1.4x = 22.6 - 7.1

6. Continue to simplify: 1.4x = 15.5

7. Finally, solve for x by dividing both sides by 1.4: x = 15.5 / 1.4 x ≈ 11.0714

So, the solution to the equation is approximately x ≈ 11.0714.