Question

750÷(х+5)=30. 4х+350=750

Answer 1

750:(х+5)=30

х+5=750:30

х+5=25

х=25-5

х=20

Ответ: х=20

________________

4х+350=750

4х=750-350

4х=400

х=400:4

х=100

Ответ: х=100

Answer 2

To solve the equation, we can follow these steps:

Step 1: Solve the equation 750/(x+5) = 30 for x. Step 2: Substitute the value of x into the second equation 4x + 350 = 750 and solve for x.

Let's begin with Step 1:

Step 1: Solve 750/(x+5) = 30 for x

To get rid of the fraction, we can multiply both sides of the equation by (x+5):

750 = 30(x + 5)

Now, distribute the 30 on the right side:

750 = 30x + 150

Next, isolate the term with 'x' by moving 150 to the other side of the equation:

750 - 150 = 30x

600 = 30x

Now, divide both sides by 30 to solve for x:

x = 600 / 30 x = 20

Step 1 is done, and we have found the value of x, which is x = 20.

Step 2: Substitute x = 20 into the second equation 4x + 350 = 750:

4(20) + 350 = 750

80 + 350 = 750

430 = 750

It seems there's an issue in Step 2. The equation 4x + 350 = 750 is not valid with the value x = 20 that we found in Step 1. There might be an error in the original problem or a mistake in writing it down.

Please double-check the equations and provide the correct ones if needed.