Question

180-(51+45÷x) =114; 6900÷(150+x) =30

Answer 1

Ответ:

180 - (51+45÷×)=114  

51+45÷x-180-114  

51÷45÷x=66

45÷x =66-51

45÷x=15

x=45÷15

x=3

6900÷(150+x) =30

6900=30(150-х)

6900 =4500-30х

30х=4500-6900

30х=-2400

х=-2400÷30

х=-80

Пошаговое объяснение:

Answer 2

Ответ:

Вот первое, сейчас решу второе,

Answer 3

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

Equation 1: 180 - (51 + 45 ÷ x) = 114

First, let's simplify the equation:

180 - (51 + 45 ÷ x) = 114 180 - 51 - 45 ÷ x = 114 129 - 45 ÷ x = 114

Next, let's isolate the term with x:

129 - 45 ÷ x = 114 -45 ÷ x = 114 - 129 -45 ÷ x = -15

Now, let's solve for x by cross-multiplying:

-45 * 1 = -15 * x -45 = -15x

Dividing both sides of the equation by -15:

-45 / -15 = -15x / -15 3 = x

Therefore, the solution for x in Equation 1 is x = 3.

Now let's move on to Equation 2: 6900 ÷ (150 + x) = 30

We'll follow the same steps as before to solve for x:

6900 ÷ (150 + x) = 30

Let's cross-multiply:

30 * (150 + x) = 6900

Expanding the brackets:

4500 + 30x = 6900

Subtracting 4500 from both sides:

30x = 6900 - 4500 30x = 2400

Dividing both sides of the equation by 30:

x = 2400 / 30 x = 80

Therefore, the solution for x in Equation 2 is x = 80.

To summarize: In Equation 1, x = 3. In Equation 2, x = 80.