Question

0,4(x-3)=0,7+0,31x+2

Answer 1

Ответ:

Пошаговое объяснение:

0,4(х - 3) = 0,7 + 0,31х +2

0,4х - 1,2 = 0,7 + 0,31х + 2

0,4х - 0,31х = 0,7 + 2 + 1,2

0,09х = 3,9

х = 3,9 : 0,09

х = 43 1/3

Answer 2

Пошаговое объяснение:

0,4x-1,2=0,7+0,31x+2

0,4x-0,31x=0,7+2+1,2

0,09x=3,9

x= 43 1/3

Answer 3

To solve the equation 0.4(x - 3) = 0.7 + 0.31x + 2, we will begin by simplifying the equation step by step.

Let's start by distributing the 0.4 on the left side of the equation:

0.4(x - 3) = 0.7 + 0.31x + 2

0.4x - 1.2 = 0.7 + 0.31x + 2

Next, we can combine like terms on the right side of the equation:

0.4x - 1.2 = 2.7 + 0.31x

Now, let's isolate the terms with x on one side of the equation by subtracting 0.31x from both sides:

0.4x - 0.31x - 1.2 = 2.7

0.09x - 1.2 = 2.7

Next, we'll isolate the x-term by adding 1.2 to both sides:

0.09x - 1.2 + 1.2 = 2.7 + 1.2

0.09x = 3.9

Finally, we can solve for x by dividing both sides of the equation by 0.09:

(0.09x)/0.09 = 3.9/0.09

x = 43.333...

Therefore, the solution to the equation 0.4(x - 3) = 0.7 + 0.31x + 2 is x = 43.333... (recurring).