Question

2(3x +5x -x) =28 уровнение 5 класса​

Answer 1

2(3х+5х-х)=28

8х-х=28:2

7х=14

х=2

Проверка: 2(6+10-2)=28

2*14=28

Ответ: х=2

Answer 2

2(3x+5x-x)=28

6x+10x-2x=28

14x=28

x=28:14

x=2

Answer 3

To solve the equation 2(3x + 5x - x) = 28, we need to simplify the expression on the left side and then isolate the variable x.

First, simplify the expression inside the parentheses: 3x + 5x - x = 7x

Now, substitute this simplified expression back into the original equation: 2(7x) = 28

Multiply 2 by 7x: 14x = 28

To isolate x, divide both sides of the equation by 14: 14x/14 = 28/14

Simplifying further: x = 2

Therefore, the solution to the equation is x = 2.