Question

0,4(x - 3) + 2,5 = 0,5 - (4 + x)​

Answer 1

Решение:

0,4(х-3)+2,5=0,5(4+х)

0,4х-1,2+2,5 = 2+0,5х

0,4х-0,5х = 2-2,5+1,2

-0,1х = 0,7

-х = 7

х = -7

Ответ: х = -7

Answer 2

Ответ:

0,4x-1,2+2,5=0,5-4-x

0,4x+x=0,5-4+1,2-2,5

1,4x=-4,8

x=-4,8÷1,4

x=-24/7=-3 3/7

Answer 3

To solve the given equation $0.4(x - 3) + 2.5 = 0.5 - (4 + x)$, follow these steps:

1. Distribute the values outside the parentheses: $0.4x - 1.2 + 2.5 = 0.5 - 4 - x$

2. Combine like terms on both sides of the equation: $0.4x + 1.3 = -3.5 - x$

3. Move all the terms involving $x$ to one side of the equation and the constants to the other side. You can do this by adding $x$ to both sides and subtracting 1.3 from both sides: $0.4x + x = -3.5 - 1.3$

   Combine the $x$-terms: $1.4x = -4.8$

4. Solve for $x$ by dividing both sides by 1.4: $x = \frac{-4.8}{1.4}$

   This simplifies to: $x \approx -3.4286$

So, the solution to the equation is $x \approx -3.4286$.