Question

При каких значениях переменной сумма 5x и 3x-7 равна 9?

Answer 1

Нужно составить уравнение

получается 5х+(3х-7)=9

                  5х+3х-7=9

                  8х=9+7

                  8х=16

                  х=16/8

                  х=2 

Answer 2

Составляем и решаем уравнение:

5х + (3х - 7) = 9

5х + 3х - 7 = 9

8х = 16

х = 2 

Answer 3

Finding the Value of x for the Given Equation

To find the values of x for which the sum of 5x and 3x-7 is equal to 9, we can set up the equation and solve for x.

The equation for the given scenario is: 5x + (3x - 7) = 9

Solving the Equation

To solve for x, we can follow these steps:

1. Combine like terms on the left-hand side of the equation. 2. Simplify the equation. 3. Solve for x.

Solution

Step 1: Combine like terms 5x + 3x - 7 = 9 8x - 7 = 9

Step 2: Simplify the equation 8x = 9 + 7 8x = 16

Step 3: Solve for x x = 16 / 8 x = 2

So, the value of x for which the sum of 5x and 3x-7 is equal to 9 is x = 2.

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