Question

Решите уравнение:0.5(4+х)-0.4(х-3)=2.5. ПОЖАЛУЙСТА помогите ооочень срочно!!!!!!!

Answer 1

0.5(4+x)-0.4(x-3)=2.5
2+0.5x-0.4x+1.2=2.5
0.1x+3.2=2.5
0,1x=2.5-3.2
0.1x=-0.7
x=-7

Answer 2

Solving the Equation: 0.5(4+х)-0.4(х-3)=2.5

To solve the equation 0.5(4+х)-0.4(х-3)=2.5, we can follow these steps:

Step 1: Distribute the coefficients: 0.5 * 4 + 0.5 * х - 0.4 * х + 0.4 * 3 = 2.5

Simplifying this expression, we get: 2 + 0.5 * х - 0.4 * х + 1.2 = 2.5

Step 2: Combine like terms: (0.5 - 0.4) * х + 2 + 1.2 = 2.5

Simplifying further, we have: 0.1 * х + 3.2 = 2.5

Step 3: Move the constant term to the other side of the equation: 0.1 * х = 2.5 - 3.2

Simplifying this expression, we get: 0.1 * х = -0.7

Step 4: Solve for х by dividing both sides of the equation by 0.1: х = -0.7 / 0.1

Simplifying further, we have: х = -7

Therefore, the solution to the equation 0.5(4+х)-0.4(х-3)=2.5 is х = -7.

Please note that the solution provided is based on the given equation. If there are any errors or if the equation is different, please let me know.