Question

2х-5)•0,7-(-0,4х+2,5)=1,8х-6.

Answer 1

(2х-5)•0,7-(-0,4х+2,5)=1,8х-6.

1,4x - 3,5 + 0,4x - 2,5 = 1,8x - 6

1,8x - 6 = 1,8x - 6

( x =>любой номер)

Answer 2

Let's solve the given equation step by step:

(2x - 5) * 0.7 - (-0.4x + 2.5) = 1.8x - 6

Step 1: Distribute the multiplication: 0.7(2x) - 0.7(5) - (-0.4x) - 2.5 = 1.8x - 6

Step 2: Simplify each term: 1.4x - 3.5 + 0.4x - 2.5 = 1.8x - 6

Step 3: Combine like terms: 1.4x + 0.4x - 3.5 - 2.5 = 1.8x - 6

Step 4: Continue simplifying: 1.8x - 6 = 1.8x - 6

At this point, we have the same term on both sides of the equation (1.8x - 6). This means that the equation is an identity and has an infinite number of solutions. In other words, any value of x will satisfy the original equation.

So, the solution to the equation is "all real numbers" or "infinite solutions."