Question

12 1/2-(2-0,3Х)=13 1/2 уравнение.

Answer 1

Ответ:

Пошаговое объяснение:

12 1/2-(2-0,3Х)=13 1/2

25/2-(2-0,3х)= 27/2

2-0,3х=25/2-27/2

2-0,3х= -1

-0,3х= -3

х=-3 :(-0,3)

х= 10

Answer 2

To solve the equation $12 \frac{1}{2} - (2 - 0.3x) = 13 \frac{1}{2}$ for $x$, follow these steps:

1. Distribute the negative sign through the parentheses: $12 \frac{1}{2} - 2 + 0.3x = 13 \frac{1}{2}$

2. Combine like terms on the left side of the equation: $\left(12 \frac{1}{2} - 2\right) + 0.3x = 13 \frac{1}{2}$

   Combine the whole numbers and the fraction: $\left(10 \frac{1}{2}\right) + 0.3x = 13 \frac{1}{2}$

3. Subtract $10 \frac{1}{2}$ from both sides of the equation to isolate the term with $x$: $\left(0.3x\right) = 3$

4. Finally, divide by 0.3 to solve for $x$: $x = \frac{3}{0.3}$

   Simplify the fraction: $x = 10$

So, the solution to the equation is $x = 10$.