Question

18/30-x=4/30+6/30, (13/67+6/67)-x=9/67, 10/15+(5/15-x)=14/15. Срочно нужен ответ, помогииите

Answer 1

Ответ:

Пошаговое объяснение:

18/30-х=4/30+6/30

18/30-х=10/30

Х=18/30-10/30

х=8/30

х=4/15

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18/30-4/15=4/30+6/30

10/30=10/30

1/3=1/3

(13/67+6/67)-Х=9/67

19/67-х=9/67

х=19/67-9/67

х=10/67

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(13/67+6/67)-10/67=9/67

                     9/67=9/67

10/15+(5/15-х)=14/15

5/15-х=14/15-10/15

5/15-х=4/15

х=5/15-4/15

х=1/15

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10/15+(5/15-1/15)=14/15

                  14/15=14/15

Answer 2

To solve the given equations, let's go step by step:

1. Equation 1: 18/30 - x = 4/30 + 6/30

To solve this equation, we need to combine like terms and isolate the variable x.

First, let's combine the fractions on the right side of the equation: 4/30 + 6/30 = 10/30 = 1/3

Now, let's rewrite the equation: 18/30 - x = 1/3

To isolate x, we can subtract 18/30 from both sides of the equation: 18/30 - 18/30 - x = 1/3 - 18/30 - x = 1/3 - 18/30

To simplify the right side of the equation, we need to find a common denominator for 3 and 30, which is 30: - x = 10/30 - 18/30 - x = -8/30 - x = -4/15

Therefore, the solution to Equation 1 is x = -4/15.

2. Equation 2: (13/67 + 6/67) - x = 9/67

To solve this equation, we need to combine like terms and isolate the variable x.

First, let's combine the fractions on the left side of the equation: 13/67 + 6/67 = 19/67

Now, let's rewrite the equation: 19/67 - x = 9/67

To isolate x, we can subtract 19/67 from both sides of the equation: 19/67 - 19/67 - x = 9/67 - 19/67 - x = 9/67 - 19/67

To simplify the right side of the equation, we need to find a common denominator for 9 and 67, which is 67: - x = 9/67 - 19/67 - x = -10/67

Therefore, the solution to Equation 2 is x = -10/67.

3. Equation 3: 10/15 + (5/15 - x) = 14/15

To solve this equation, we need to combine like terms and isolate the variable x.

First, let's combine the fractions on the left side of the equation: 10/15 + 5/15 - x = 15/15 - x

Now, let's rewrite the equation: 15/15 - x = 14/15

To isolate x, we can subtract 15/15 from both sides of the equation: 15/15 - 15/15 - x = 14/15 - 15/15 - x = 14/15 - 15/15

To simplify the right side of the equation, we need to find a common denominator for 14 and 15, which is 15: - x = 14/15 - 15/15 - x = -1/15

Therefore, the solution to Equation 3 is x = -1/15.

In summary, the solutions to the given equations are: - Equation 1: x = -4/15 - Equation 2: x = -10/67 - Equation 3: x = -1/15

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