Question

(21 x+18) : 3 = 202 +504

Answer 1

Ответ:   100.

Пошаговое объяснение:

(21 x+18) : 3 = 202 +504;

(21 x+18) : 3 = 706;

21x+18=706*3;

21x+18=2118;

21x=2118-18;

x=2100/21;

x=100.

Answer 2

Ответ:

x = 100

Пошаговое объяснение:

(21x + 18) : 3 = 202 + 504

21x + 18/3 = 706

3(7x+6)/3 = 706

7x + 6 = 706

7x = 706 - 6

7x = 700

x = 100

Answer 3

To solve the equation (21x + 18) ÷ 3 = 202 + 504, we will simplify both sides of the equation step by step.

First, let's simplify the right side of the equation: 202 + 504 = 706.

Now, the equation becomes: (21x + 18) ÷ 3 = 706.

To isolate the variable x, we can multiply both sides of the equation by 3 to cancel out the division on the left side: 3 * [(21x + 18) ÷ 3] = 3 * 706.

This simplifies to: 21x + 18 = 2118.

Next, we'll isolate the term with x by subtracting 18 from both sides of the equation: 21x + 18 - 18 = 2118 - 18.

This simplifies to: 21x = 2100.

To solve for x, we divide both sides of the equation by 21: (21x)/21 = 2100/21.

This further simplifies to: x = 100.

Therefore, the solution to the equation (21x + 18) ÷ 3 = 202 + 504 is x = 100.