Question

630:(3x-21)-47=230:10​

Answer 1

Ответ:

x=10

Пошаговое объяснение:

630/3x-21-47=23

210/x-7-47=23

210/x-7=70

210=70(x-7)

3=x-7

-x=-7-3

-x=-10

x=10

Answer 2

Ответ:

х = 10

Пошаговое объяснение:

630:(3x-21)-47 = 230:10​

(3x-21) = 630 : (23+47)

3х-21 = 630 : 70

3х = 9 + 21

3х = 30

х = 30:3

х = 10

Answer 3

To solve the equation, you need to isolate the variable, which in this case is "x." Here are the steps to solve the equation:

1. Start by simplifying both sides of the equation.

   On the left side, simplify the expression within the parentheses:

   630:(3x-21) - 47

   Divide 630 by (3x-21):

   (630 / (3x-21)) - 47

   On the right side, simplify 230 divided by 10:

   230 / 10 = 23

   So, the equation becomes:

   (630 / (3x-21)) - 47 = 23

2. Add 47 to both sides of the equation to isolate the fraction on the left side:

   (630 / (3x-21)) - 47 + 47 = 23 + 47

   This simplifies to:

   630 / (3x-21) = 70

3. Now, you can cross-multiply to solve for (3x-21):

   630 = 70 * (3x-21)

4. Divide both sides by 70 to isolate (3x-21):

   (630 / 70) = (70 * (3x-21)) / 70

   9 = 3x - 21

5. Add 21 to both sides to solve for 3x:

   9 + 21 = 3x

   30 = 3x

6. Finally, divide both sides by 3 to find the value of x:

   (30 / 3) = (3x / 3)

   10 = x

So, the solution to the equation is x = 10.