Question

1,2-(x-1/4)=1/2 СРОЧНО УРАВНЕНИЕ 30 БАЛЛОВ

Answer 1

$1.2 - (x - \frac{1}{4} ) = \frac{1}{2} \\ \\ 1.2 - x + \frac{1}{4} = \frac{1}{2} \\ \\ \frac{12}{10} - x + \frac{1}{4} = \frac{1}{2} \\ \frac{12 \times 2}{10 \times 2} - x + \frac{1 \times 5}{4 \times 5} = \frac{1}{2} \\ \\ \frac{24}{20} - x + \frac{5}{20} = \frac{1}{2} \\ \\ \frac{29}{20} - x = \frac{1}{2} \\ \\ - x = \frac{1}{2} - \frac{29}{20} \\ \\ - x = \frac{1 \times 10}{2 \times 10} - \frac{29}{20} \\ - x = \frac{10}{20} - \frac{29}{20} \\ \\ - x = - \frac{19}{20} \\ x = \frac{19}{20}$
ответ: х=19/20

Answer 2

To solve the equation 1,2-(x-1/4) = 1/2, follow these steps:

Step 1: Simplify the equation by performing the operations inside the parentheses first. 1,2 - (x - 1/4) = 1/2 1,2 - x + 1/4 = 1/2

Step 2: Combine like terms on the left side of the equation. 1,2 + 1/4 - x = 1/2

Step 3: Get rid of the fractions by multiplying the entire equation by 4 to clear the fraction. 4 * (1,2 + 1/4 - x) = 4 * (1/2) 4 * 1,2 + 1 - 4x = 2

Step 4: Now, isolate the term containing x by moving other terms to the other side of the equation. 4 * 1,2 - 1 = 4x - 2 4 * 1,2 - 1 + 2 = 4x 4 * 1,2 + 1 = 4x 5,8 = 4x

Step 5: Solve for x by dividing both sides of the equation by 4. x = 5,8 / 4 x = 1,45

So, the solution to the equation is x = 1.45.