Question

( х + 3/10) - 4/20)= 7/30​

Answer 1

Ответ: 2/15

Пошаговое объяснение:

(х + 3/10) - 4/20 = 7/30

х + 3/10 - 2/10 = 7/30

х + 1/10 = 7/30

х = 7/30 - 3/30

х = 4/30

х = 2/15

Answer 2

Ответ:

$( x + \frac{3}{10} ) - \frac{4}{20} = \frac{7}{30}$

$x + \frac{3}{10} - \frac{4}{20} = \frac{7}{30}$

$x + \frac{1}{10} = \frac{7}{30}$

$x = \frac{7}{30} - \frac{1}{10}$

$x = \frac{2}{15} = 0,1(3)$

Answer 3

The equation you've provided seems to have a small typographical error. It appears you're trying to solve for the variable "х" in the equation:

(х + 3/10) - 4/20 = 7/30

Let's solve it step by step:

1. Combine the fractions on the left side: х + 3/10 - 4/20 = 7/30

2. To add or subtract fractions, they need a common denominator. The common denominator of 10 and 20 is 20. So, let's convert the fractions to have a common denominator of 20: х + (6/20) - (2/20) = 7/30

3. Simplify the fractions: х + 6/20 - 2/20 = 7/30 х + 4/20 = 7/30 х + 1/5 = 7/30

4. Subtract 1/5 from both sides of the equation to isolate "х": х = 7/30 - 1/5

5. Find a common denominator for 30 and 5, which is 30: х = (7/30) - (6/30)

6. Subtract the fractions: х = 1/30

So, the solution to the equation is: х = 1/30