Question

0,6•(2х-3)=0,4•(9+3х)-2•(х-0,9)​

Answer 1

Ответ: корень уравнения равен 3,6

Пошаговое объяснение:

0,6•(2х-3)=0,4•(9+3х)-2•(х-0,9)​

1,2х-1,8=3,6+1,2х-2х+1,8

1,2х-1,8=5,4-0,8х

1,2х+0,8х=5,4+1,8

2х=7,2

х=3,6

Answer 2

To solve the equation 0.6(2x - 3) = 0.4(9 + 3x) - 2(x - 0.9), you can follow these steps:

1. Distribute the constants on both sides of the equation:

0.6 * 2x - 0.6 * 3 = 0.4 * 9 + 0.4 * 3x - 2 * x + 2 * 0.9

2. Simplify each side by performing the multiplication and combining like terms:

1.2x - 1.8 = 3.6 + 1.2x - 2x + 1.8

3. Now, let's rearrange the equation by moving the terms with x to one side:

1.2x - 1.2x - 2x = 3.6 - 1.8 + 1.8

-0.8x = 3.6

4. Divide both sides by -0.8 to isolate x:

x = 3.6 / (-0.8)

x = -4.5

So, the solution to the equation is x = -4.5.