Question

1)|x|=10 2)|x|=-9 3)10/7=x/3 4)x+(-8)=3​

Answer 1

Ответ:

1) х1=-10 х2=10

2)нет решения

3) х=4 целых 2/7

4)х=11

Пошаговое объяснение:

Answer 2

Мне кажется, что ответ правильный

Answer 3

Let's solve each of these equations step by step:

1. |x| = 10

To solve this equation, you need to consider two cases:

Case 1: x is positive. In this case, |x| is equal to x, so the equation becomes: x = 10

Case 2: x is negative. In this case, |x| is equal to -x, so the equation becomes: -x = 10

Now, solve for x: For Case 1: x = 10 For Case 2: -x = 10 Multiply both sides by -1 to isolate x: x = -10

So, the solutions to the equation |x| = 10 are x = 10 and x = -10.

2. |x| = -9

This equation has no real solutions because the absolute value of any real number is always non-negative (greater than or equal to zero). Since -9 is negative, there are no values of x that satisfy this equation.

3. 10/7 = x/3

To solve for x, cross-multiply: 10 * 3 = 7 * x

Now, simplify: 30 = 7x

Divide both sides by 7 to isolate x: x = 30/7

So, the solution to the equation 10/7 = x/3 is x = 30/7.

4. x + (-8) = 3

To solve for x, add 8 to both sides of the equation: x + (-8) + 8 = 3 + 8

Simplify: x = 11

So, the solution to the equation x + (-8) = 3 is x = 11.