Question

228 : х = 12 3). 24 (х + 15) = 432 4). 13х + 4х = 408

Answer 1

Ответ:

2)228:х=12

х=19

3)24(х+15)=432

раскроем скобки:

24х+360=432

24х=432-360

24х=72

х=3

4)13х+4х=408

17х=408

х=24

Answer 2

Ответ:

1)x=19

3)x=3

4)x=24

Пошаговое объяснение:

1)228 : х = 12

228 = 12x

12x = 228

x = 19, x/=0.

x=19

3)24(x + 15) = 432

x + 15=18

x = 18 - 15

x = 3

4)13x + 4x = 408

17x = 408

x = 24

Answer 3

To solve the equations, let's go through each one step by step:

1. 228 : x = 12

To solve this equation, we need to isolate the variable x. We can do that by multiplying both sides of the equation by x:

228 = 12x

Now, divide both sides by 12:

228 / 12 = x

x = 19

So the solution to the first equation is x = 19.

2. 24(x + 15) = 432

Let's simplify this equation:

24x + 360 = 432

Now, let's isolate the variable x by moving the constant term to the other side:

24x = 432 - 360

24x = 72

Divide both sides by 24:

x = 72 / 24

x = 3

So the solution to the second equation is x = 3.

3. 13x + 4x = 408

Combine the like terms on the left side:

17x = 408

Divide both sides by 17:

x = 408 / 17

x ≈ 24

So the solution to the third equation is approximately x = 24.

In summary:

1. x = 19
2. x = 3
3. x ≈ 24