Question

8+|10х-7|:4-0.25=10объясните решение

Answer 1

8+|10х-7|:4-0.25=10
7.75+|10х-7|:4=10
|10х-7|:4=2.25
|10х-7|=9
10х-7=9 или 10х-7=-9
10х=16 10х=-2
х=1.6 х=-0.2
Ответ: 1.6 или -0.2

Answer 2

To solve the expression 8 |10x - 7| : 4 - 0.25, we need to follow the order of operations (also known as PEMDAS or BODMAS). This means we need to perform the operations in the following order: parentheses, exponents, multiplication and division (from left to right), and addition and subtraction (from left to right).

Let's break down the expression step by step:

1. First, let's simplify the absolute value expression |10x - 7|. The absolute value of a number is its distance from zero on the number line. If the expression inside the absolute value is positive, the absolute value is equal to the expression itself. If the expression inside the absolute value is negative, the absolute value is equal to the negation of the expression.

In this case, we have |10x - 7|. To simplify it, we need to consider two cases:

- If 10x - 7 is positive or zero, then |10x - 7| = 10x - 7. - If 10x - 7 is negative, then |10x - 7| = -(10x - 7).

2. Now, let's simplify the expression 8 |10x - 7| : 4 - 0.25 using the simplified absolute value expression.

- 8 |10x - 7| becomes 8(10x - 7) or -8(10x - 7), depending on the sign of 10x - 7.

- 4 - 0.25 is equal to 3.75.

3. Finally, let's divide the expression 8(10x - 7) or -8(10x - 7) by 3.75.

Please provide the value of x so that we can continue with the calculation.