Question

7х-12 больше либо равно 8х+7​

Answer 1

7x - 12 ≥ 8x + 7

7x - 8x ≥ 7 + 12

- x ≥ 19

x ≤ - 19

Ответ : x ∈ (- ∞ ; - 19]

Answer 2

-1x《19
x》-19

легко и просто

Answer 3

To determine whether 7x - 12 is greater than or equal to 8x + 7, we can set up the inequality and then solve for x.

The inequality is: 7x - 12 ≥ 8x + 7

Let's solve it step-by-step:

1. First, move all the terms involving x to one side and the constant terms to the other side of the inequality: 7x - 8x ≥ 7 + 12

2. Combine the x terms on the left side: -x ≥ 19

3. To isolate x, we need to divide by -1. When dividing by a negative number, the inequality sign will flip. x ≤ -19

So the solution to the inequality is x ≤ -19.