Question

-1.9-（х-3.5）= -1-2.5+（х+1.1） Допоможіть терміново！

Answer 1

-1,9-(x-3,5)= -1-2,5+(x+1,1)
-1,9-x+3,5= -1-2,5+x+1,1
-x-x= -1-2,5+1,1+1,9-3,5
-2x= -4
2x=4
x=4:2
x=2

Відповідь: 2

Answer 2

Ответ:

-1.9 -x+3.5=1-2,5 +x +1.1(звести подібні доданки)

1.6-х= -0.4+х

x-x=-0.14-1.6

-2x=-2/2

x=1

Answer 3

Solving the Equation -1.9 - (x - 3.5) = -1 - 2.5 + (x + 1.1)

To solve the equation -1.9 - (x - 3.5) = -1 - 2.5 + (x + 1.1), we can follow these steps:

1. Distribute the Negative Sign - Distribute the negative sign inside the parentheses on the left-hand side and the right-hand side of the equation.

2. Combine Like Terms - Combine like terms on both sides of the equation.

3. Isolate the Variable - Isolate the variable term to solve for the value of x.

Let's solve the equation step by step.

Step 1: Distribute the Negative Sign

- -1.9 - (x - 3.5) = -1 - 2.5 + (x + 1.1) - -1.9 - x + 3.5 = -1 - 2.5 + x + 1.1

Step 2: Combine Like Terms

- Combine the constant terms and the x terms separately. - (-1.9 + 3.5) - x = (-1 - 2.5 + 1.1) + x - 1.6 - x = -2.4 + x

Step 3: Isolate the Variable

- Add x to both sides of the equation to isolate the x term on one side. - 1.6 = -2.4 + x + x - 1.6 = -2.4 + 2x

- Add 2.4 to both sides of the equation to further isolate the x term. - 1.6 + 2.4 = -2.4 + 2x + 2.4 - 4 = 2x

- Finally, divide both sides by 2 to solve for x. - x = 4 / 2 - x = 2

Therefore, the solution to the equation -1.9 - (x - 3.5) = -1 - 2.5 + (x + 1.1) is x = 2.