Question

(6.9-x)-1.8=2.9помогите решить , срочно

Answer 1

(6.9-x)-1.8=2.9

6.9-x=2.9+1.8

6.9-x=4.7

x=6.9-4.7

x=2.2

Ответ:2,2

Answer 2

(6.9-x)-1.8=2.9

6,9-х=2,9+1,8

6,9-х=4,7

х=6,9-4,7

х=2,2

Проверка

(6,9-2,2)-1,8=4,7-1,8=2,9

2,9=2,9

Answer 3

To solve the equation (6.9 - x) - 1.8 = 2.9, we can follow these steps:

Step 1: Simplify the equation by combining like terms. - Start by removing the parentheses by distributing the negative sign to both terms inside the parentheses: 6.9 - x - 1.8 = 2.9 6.9 - x - 1.8 = 2.9 6.9 - x - 1.8 = 2.9 - Combine the like terms on the left side of the equation: 6.9 - 1.8 - x = 2.9 5.1 - x = 2.9

Step 2: Isolate the variable term. - To isolate the variable term, we need to move the constant term to the other side of the equation. - Start by subtracting 5.1 from both sides of the equation: 5.1 - x - 5.1 = 2.9 - 5.1 -x = -2.2

Step 3: Solve for x. - To solve for x, we need to isolate the variable by multiplying both sides of the equation by -1: -1 * (-x) = -1 * (-2.2) x = 2.2

Therefore, the solution to the equation (6.9 - x) - 1.8 = 2.9 is x = 2.2.

Please let me know if you need any further assistance!