Question

7*(88+(x-4):30)‐56=755

Answer 1

Ответ:

5878/7=839,714

Пошаговое объяснение:

7(88+(x-4):30)-56=755

7(88+(x/30-4/30)=811

7*88+7x/30-28/30=811

616+7x/30-28/30=811

7x/30-28/30=195

7x/30=195+28/30

7x/30=(5850+28)/30

7x/30=5878/30

7x=(5878*30)/30

7x=5877

X=5878/7=839,714

Answer 2

Let's solve the equation step by step:

Given equation: 7 * (88 + (x - 4) / 30) - 56 = 755

1. First, let's simplify the expression within the parentheses: 88 + (x - 4) / 30

2. Now, let's substitute the simplified expression back into the equation: 7 * (88 + (x - 4) / 30) - 56 = 755

3. Distribute the 7 on the left side of the equation: 7 * 88 + 7 * (x - 4) / 30 - 56 = 755

4. Simplify the expression by multiplying 7 and 30: 616 + (7 * (x - 4)) / 30 - 56 = 755

5. Distribute the 7 on the remaining term: 616 + (7x - 28) / 30 - 56 = 755

6. Combine the constant terms on the left side: (616 - 56) + (7x - 28) / 30 = 755

7. Simplify the left side: 560 + (7x - 28) / 30 = 755

8. Subtract 560 from both sides: (7x - 28) / 30 = 195

9. Multiply both sides by 30 to isolate (7x - 28): 7x - 28 = 195 * 30

10. Simplify the right side: 7x - 28 = 5850

11. Add 28 to both sides: 7x = 5878

12. Divide both sides by 7: x = 5878 / 7

13. Calculate x: x ≈ 839.71

So, the approximate solution to the equation is x ≈ 839.71.