Question

Х+7=12 6+х=13 13-х=5

Answer 1

Ответ:

5; 7; 8.

Пошаговое объяснение:

Х+7=12             6+х=13         13-х=5

x = 12 - 7           x = 13-6        x=13-5

x = 5                  x = 7             x=8

Answer 2

Ответ:

1.   х = 5

2.  х = 7

3.  х = 8

Пошаговое объяснение:

1. х+7=12

х = 12 - 7

х = 5

2. 6+х=13

х = 13 - 6

х = 7

3. 13-х=5

- х = 5 - 13

- х = -8

х = 8

Answer 3

To solve this equation, we need to isolate the variable, x.

Starting with the first expression: х + 7 = 12

To solve for x, we need to get rid of the 7 on the left side. We can do this by subtracting 7 from both sides: х + 7 - 7 = 12 - 7 х = 5

The solution for the first expression is x = 5.

Moving on to the second expression: х + 6 = 13

To solve for x, we need to get rid of the 6 on the left side. We can do this by subtracting 6 from both sides: х + 6 - 6 = 13 - 6 х = 7

The solution for the second expression is x = 7.

Finally, let's solve the third expression: 13 - х = 5

To solve for x, we need to get rid of the 13 on the left side. We can do this by subtracting 13 from both sides: 13 - х - 13 = 5 - 13 -х = -8

Since we want to solve for x, we can multiply both sides by -1 to get rid of the negative sign: (-х) * (-1) = (-8) * (-1) х = 8

The solution for the third expression is x = 8.

In summary: 1st expression: x = 5 2nd expression: x = 7 3rd expression: x = 8