Question

2,3+8-21х=5 Решите пожалуйста пример, срочно​

Answer 1

$2,3+8-21x=5;\\10,3-21x=5;\\10,3-5=21x;\\5,3=21x;\\21x=5,3;\\x=5,3:21=53:210=\dfrac{53}{210} .$

Answer 2

To solve the equation 2 + 3 * 8 - 21x = 5, we need to isolate the variable x. Let's break down the steps to solve this equation:

Step 1: Simplify the equation First, we simplify the equation by performing the multiplication and addition/subtraction operations:

2 + 3 * 8 - 21x = 5 2 + 24 - 21x = 5 26 - 21x = 5

Step 2: Isolate the variable x Next, we want to isolate the variable x on one side of the equation. To do this, we'll move the constant term (26) to the other side by subtracting it from both sides of the equation:

26 - 21x - 26 = 5 - 26 -21x = -21

Step 3: Solve for x To solve for x, we divide both sides of the equation by the coefficient of x, which is -21:

(-21x) / -21 = (-21) / -21 x = 1

Therefore, the solution to the equation 2 + 3 * 8 - 21x = 5 is x = 1.

I hope this helps! Let me know if you have any further questions.