Question

(20-x)-6 7/18=8 17/18

Answer 1

Вот........................

Answer 2

20-x=8 17/18+ 6 7/18

20-x= 14 24/18

20-x=15 6/18

20-x=15 1/3

x=20-15 1/3

x=19 3/3- 15 1/3

x=4 2/3

Answer 3

To solve the equation, you need to isolate the variable "x." Let's start by simplifying the left-hand side of the equation:

(20 - x) - 6 7/18 = 8 17/18

First, let's convert the mixed number 6 7/18 to an improper fraction: 6 7/18 = (6 * 18 + 7) / 18 = 115 / 18

Now, the equation becomes:

(20 - x) - 115/18 = 8 17/18

Next, we can get rid of the fraction on the right side by converting the mixed number 8 17/18 to an improper fraction: 8 17/18 = (8 * 18 + 17) / 18 = 149 / 18

Now, the equation becomes:

(20 - x) - 115/18 = 149/18

To get rid of the fraction on the left side, we can multiply both sides by 18:

18 * ((20 - x) - 115/18) = 18 * (149/18)

This simplifies to:

18 * (20 - x) - 115 = 149

Now, let's isolate the variable "x" by moving constants to the other side:

18 * (20 - x) = 149 + 115

18 * (20 - x) = 264

Now, divide both sides by 18 to solve for "x":

(20 - x) = 264 / 18

(20 - x) = 14.67

Now, subtract 20 from both sides to get "x" alone:

x = 20 - 14.67

x ≈ 5.33

Therefore, the solution to the equation is approximately x = 5.33.