Question

(7,1-х)+3,9=4,5 решите уравнение

Answer 1

1)4,5-3,9=0,6
2)х=7,1-0,6=6,5

Answer 2

(7.1-х)+3.9=4.5
Решение
7.1-х+3.9=4.5;
11-х=4.5;
-х= 4.5-11;
-х= -6.5;
х=6.5;
Ответ : 6.5

Answer 3

To solve the equation (7 - 1x) + 3.9 = 4.5, follow these steps:

Step 1: Combine like terms on the left side of the equation: (7 - 1x) + 3.9 = 4.5 Subtract 3.9 from both sides to isolate the x term on the left side: (7 - 1x) = 4.5 - 3.9

Step 2: Simplify the right side: 4.5 - 3.9 = 0.6

Step 3: Continue isolating the x term on the left side: (7 - 1x) = 0.6 Now, subtract 7 from both sides to get rid of the constant term: -1x = 0.6 - 7

Step 4: Simplify the right side: 0.6 - 7 = -6.4

Step 5: Finally, solve for x by dividing both sides by -1: x = -6.4 / -1

Step 6: Calculate the result: x = 6.4

So, the solution to the equation is x = 6.4.