Question

0,4x = 0,4 - 2(x+2)

Answer 1

0,4x=0,4-2x-4

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

2,4x=-3,6

X=-1,5

Answer 2

0,4x=0,4-2(x+2)

 

0,4x=0,4-2x-4

 

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

 

2,4x=-3,6

 

x=-3,6:2,4

 

x=-1,5

____________________________________________________________

0,4\*(-1,5)=0,4-2\*(-1,5+2) (это проверка)

 

-0,6=0,4-2*0,5

 

-0,6=0,4-1

 

-0,6=-0,6

Answer 3

To solve the equation 0.4x = 0.4 - 2(x + 2), follow these steps:

Step 1: Distribute the -2 on the right side of the equation: 0.4x = 0.4 - 2x - 4

Step 2: Combine like terms on the right side: 0.4x = -2x - 3.6

Step 3: Bring all the x terms to one side of the equation by adding 2x to both sides: 0.4x + 2x = -3.6

Step 4: Combine the x terms on the left side: 2.4x = -3.6

Step 5: Isolate x by dividing both sides by 2.4: x = -3.6 / 2.4

Step 6: Simplify the division: x = -1.5

So, the solution to the equation is x = -1.5.