2(2,5x -1)=-(1,8-4x)

To solve the equation \( 2(2.5x - 1) = -(1.8 - 4x) \), we can first distribute both sides and then simplify.

1. Distribute on the left side:
   \( 2 \cdot 2.5x - 2 \cdot 1 = 5x - 2 \)

2. Distribute on the right side:
   \( -1.8 + 4x \)

Now we have the equation: \[ 5x - 2 = -1.8 + 4x \]

3. Next, let's isolate \( x \):

   • Subtract \( 4x \) from both sides:
     \( 5x - 4x - 2 = -1.8 \)
     \( x - 2 = -1.8 \)

4. Then, add \( 2 \) to both sides:
   \( x = -1.8 + 2 \)
   \( x = 0.2 \)

So the solution is: \[ x = 0.2 \]