Question

Прошу быстрее реши уравнение с комментированием и сделай проверку 20:(X:9)-4=0

Answer 1

Ответ:

45

Пошаговое объяснение:

20:(x:9)-4=0

20:(x:9)=4

x:9=20:4

x:9=5

x=5*9

x=45

__________

20:(45:9)-4=0

20:5-4=0

4-4=0

0=0

Answer 2

Solving the Equation

To solve the equation 20:(X:9)-4=0, we can follow these steps:

1. First, we simplify the expression inside the parentheses. 2. Then, we perform the division and subtraction to isolate the variable.

Let's solve the equation step by step.

Step 1: Simplify the Expression Inside the Parentheses The expression inside the parentheses is X:9. This can be simplified as X divided by 9.

Step 2: Perform the Division and Subtraction Now, we can substitute the simplified expression into the equation and solve for X:

20:(X/9) - 4 = 0

To isolate X, we can first add 4 to both sides of the equation:

20:(X/9) = 4

Then, we can multiply both sides by 9 to get rid of the fraction:

20 = 4 * (X/9)

Finally, we can solve for X by multiplying both sides by 9 and then dividing by 4:

X = 20 * 9 / 4

Calculation

Let's calculate the value of X:

X = 20 * 9 / 4 X = 45

Verification

Now, let's verify the solution by substituting X = 45 back into the original equation:

20:(45/9) - 4 = 0 20:(5) - 4 = 0 20:5 - 4 = 0 4 - 4 = 0 0 = 0

The equation holds true when X = 45, so the solution is correct.