Question

7 : 2 * х + 1 = 4 : 5

Answer 1

Ответ:

7÷2×x+1= 4÷5

$\frac{7}{2}$x+1= 0,8

$\frac{7}{2}$x+1= $\frac{4}{5}$

35x+10=8

35x= 8-10

35x= -2

x= -$\frac{2}{35}$

Пошаговое объяснение:

Answer 2

Пошаговое объяснение:

7 : 2 * х + 1 = 4 : 5

3,5 * х + 1 = 0,8

3,5х = 0,8 - 1

3,5х = -0,2

х = -0,2 : 3,5

х = -2 : 35

х = -2/35

Answer 3

To solve the equation, let's follow the order of operations (PEMDAS/BODMAS) to simplify both sides of the equation and find the value of 'x'.

Given equation: 7 : 2 * x + 1 = 4 : 5

First, simplify the divisions on both sides:

7 : 2 = 7 / 2 = 3.5

4 : 5 = 4 / 5 = 0.8

Now we have: 3.5 * x + 1 = 0.8

Next, subtract 1 from both sides to isolate the term with 'x':

3.5 * x + 1 - 1 = 0.8 - 1

This simplifies to: 3.5 * x = -0.2

To solve for 'x', divide both sides of the equation by 3.5:

(3.5 * x) / 3.5 = (-0.2) / 3.5

This results in: x = -0.2 / 3.5

Calculating the division gives us: x ≈ -0.0571 (rounded to four decimal places)

Therefore, the solution to the equation is approximately x = -0.0571.