Question

3,9-(х-6,1)=17,4 как решить уравнение

Answer 1

3,9-(х-6,1)=17,4

3,9-х+6,1=17,4

3,9+6,1-17,4=х

-7,4=х

Ответ: х= -7,4

Answer 2

To solve the equation 3.9 - (x - 6.1) = 17.4, follow these steps:

Step 1: Distribute the negative sign inside the parentheses. Step 2: Combine like terms. Step 3: Isolate the variable x on one side of the equation. Step 4: Solve for x.

Let's go through each step in detail:

Step 1: Distribute the negative sign inside the parentheses: 3.9 - x + 6.1 = 17.4

Step 2: Combine like terms: Combine 3.9 and 6.1: 10 - x = 17.4

Step 3: Isolate the variable x on one side of the equation: To isolate x, subtract 10 from both sides of the equation: 10 - x - 10 = 17.4 - 10 -x = 7.4

Step 4: Solve for x: To solve for x, we need to get rid of the negative sign in front of x. Multiply both sides by -1: (-1) * (-x) = (-1) * 7.4 x = -7.4

So, the solution to the equation is: x = -7.4