Question

Х-9=4 у+7=15 35-х=30​

Answer 1

х-9=4. у+7=15. 35-х=30

х=4+9. у=15-7. х=35-30

х=13. у=8. х=5

13-9=4. 8+7=15 35-5=30

4=4. 15=15. 30=30

Answer 2

To solve the equations, follow these steps:

1. Solve for x in the equation "Х-9=4": Add 9 to both sides of the equation to isolate x. Х - 9 + 9 = 4 + 9 Х = 13

2. Solve for y in the equation "у+7=15": Subtract 7 from both sides of the equation to isolate y. у + 7 - 7 = 15 - 7 у = 8

3. Solve for x in the equation "35-х=30": Subtract 30 from both sides of the equation to isolate x. 35 - х - 30 = 30 - 30 -х = -5

Now, to find the value of x, divide both sides by -1: -х / -1 = -5 / -1 х = 5

So, the solutions to the equations are: Х = 13 у = 8 х = 5

Answer 3

To solve each of these equations, we need to find the value of the variable (X or у) that makes the equation true.

1. Х - 9 = 4

To find the value of Х, we want to isolate it on one side of the equation. We can do this by adding 9 to both sides of the equation to cancel out the -9 on the left side.

Х - 9 + 9 = 4 + 9 Х = 13

So, the value of Х is 13.

2. у + 7 = 15

To find the value of у, we can isolate it on one side of the equation by subtracting 7 from both sides.

у + 7 - 7 = 15 - 7 у = 8

So, the value of у is 8.

3. 35 - х = 30

To find the value of х, we need to isolate it on one side of the equation. In this case, we can do this by subtracting 30 from both sides.

35 - х - 30 = 30 - 30 -х = 5

Now, to find the value of х, we need to divide both sides by -1 (to cancel out the negative sign).

-х / -1 = 5 / -1 х = -5

So, the value of х is -5.

Final results: Х = 13 у = 8 х = -5