Question

0.3х=3.9-х​

Answer 1

Решение:

0,3х = 3,9 - х

0,3х + х = 3,9

1,3х = 3,9

х = 3,9 ÷ 1,3

х = 3

Ответ: х = 3

Проверка:

0,3х = 3,9 - х

(0,3 × 3) = 3,9 - 3

0,9 = 3,9 - 3

0,9 = 0,9

Ответ правильный!

Answer 2

Ответ:

Пошаговое объяснение:

0,3х + х = 3,9

1,3х = 3,9

х = 3,9 : 1,3

х = 3

Answer 3

To solve the equation 0.3x = 3.9 - x, you can follow these steps:

1. Add x to both sides of the equation to isolate the x terms on one side:

0.3x + x = 3.9

Now, combine the x terms on the left side:

1.3x = 3.9

2. Divide both sides by 1.3 to solve for x:

(1.3x) / 1.3 = 3.9 / 1.3

x = 3.9 / 1.3

x = 3

So, the solution to the equation is x = 3.