Question

0,8x+3,5x-0,75=1,140

Answer 1

Ответ:

Пошаговое объяснение:

0,8x+3,5x-0,75=1,140

0,8х + 3,5х = 1,4 +0,75;

4,3х  = 2,15;

х = 2,15 / 4,3;

х = 0,5.

Ответ примера: х = 0,5.

Answer 2

Ответ:

х = 430/189 = 2 * 52/189

Пошаговое объяснение:

8/10х + 7/2х - 3/4 = 57/50

(8+35)/10х = 57/50 + 3/4

43/10х = (114+75)/100

43/10х = 189/100

1890х = 4300

х = 4300/1890

х = 2150/945

х = 430/189 = 2 * 52/189

Answer 3

To solve for x in the equation 0.8x + 3.5x - 0.75 = 1.140, you'll want to combine like terms and then isolate x. Here are the steps:

1. Combine like terms on the left side of the equation: 0.8x + 3.5x - 0.75 = 1.140 (0.8x + 3.5x) - 0.75 = 1.140 4.3x - 0.75 = 1.140

2. Add 0.75 to both sides of the equation to isolate the term with x on the left side: 4.3x - 0.75 + 0.75 = 1.140 + 0.75 4.3x = 1.890

3. Now, divide both sides by 4.3 to solve for x: (4.3x)/4.3 = 1.890/4.3 x = 1.890/4.3

4. Calculate the value of x: x ≈ 0.4395

So, the solution for x is approximately x ≈ 0.4395.