Question

5х=3х+8,7х=5х+12,3х+4=х+16

Answer 1

Ответ в прикреплённом фото

Answer 2

To solve these equations, we'll go through each one step by step:

Equation 1: 5x = 3x + 8

To isolate the variable x, we want to get rid of the terms with x on one side. We can do this by subtracting 3x from both sides of the equation:

5x - 3x = 3x + 8 - 3x

This simplifies to:

2x = 8

Now, we can divide both sides of the equation by 2 to solve for x:

2x/2 = 8/2

x = 4

So the solution to the first equation is x = 4.

Equation 2: 7x = 5x + 12

We'll follow a similar process as before. Subtract 5x from both sides:

7x - 5x = 5x + 12 - 5x

This simplifies to:

2x = 12

Divide both sides by 2:

2x/2 = 12/2

x = 6

The solution to the second equation is x = 6.

Equation 3: 3x + 4 = x + 16

First, let's isolate x by subtracting x from both sides:

3x + 4 - x = x + 16 - x

This simplifies to:

2x + 4 = 16

Next, subtract 4 from both sides:

2x + 4 - 4 = 16 - 4

This simplifies to:

2x = 12

Divide both sides by 2:

2x/2 = 12/2

x = 6

The solution to the third equation is x = 6.

Therefore, the solutions to the given equations are: x = 4 x = 6 x = 6