Question

2. Решите неравенство 6-13 меньше или равно 7х+5. И 3. Решите неравенство 4(x-1)-(9-5) больше или равно 7. СРОЧНО ПЖ ПЖ ПЖ ПЖ!!!¡!!!!!!!!!! ДАЮ БАЛОВ​

Answer 1

Ответ:

Пошаговое объяснение:

6 - 13 ≤ 7х + 5

-7 ≤ 7х + 5

-7х ≤ 5 + 7

-7х ≤ 12

х ≥ 12 : (-7)

х ≥ -12/7

х ≥ -1. 5/7

х € [-1. 5/7; + ∞}

4(х -1) - (9 - 5) ≥ 7

4х - 4 - 4 ≥ 7

4х - 8 ≥ 7

4х ≥ 7 + 8

4х ≥ 15

х ≥ 15 : 4

х ≥ 3,75

х € [3,75; + ∞}

Answer 2

Ответ:

1. х ≥ -1 5/7

2.   х ≥ 3 3/4

Пошаговое объяснение:

1. 6 - 13 ≤ 7х + 5    

-7 ≤ 7х + 5    -7х ≤ 5 + 7   -7х ≤ 12     х ≥ 12/(-7)    х ≥ -1 5/7

2. 4(х - 1) - (9 - 5)  ≥ 7

4х - 4 - 4 ≥ 7

4х - 8  ≥ 7      4х ≥ 7 + 8     4х ≥ 15     х ≥ 15/4      х ≥ 3 3/4

Answer 3

Solution to the First Inequality: 6 - 13 ≤ 7x + 5

To solve the inequality 6 - 13 ≤ 7x + 5, we can follow these steps:

Step 1: Simplify both sides of the inequality: - 6 - 13 ≤ 7x + 5 - -7 ≤ 7x + 5

Step 2: Move the constant term to the other side of the inequality: - -7 - 5 ≤ 7x - -12 ≤ 7x

Step 3: Divide both sides of the inequality by the coefficient of x, which is 7: - (-12) / 7 ≤ x - x ≥ -12/7

Therefore, the solution to the inequality 6 - 13 ≤ 7x + 5 is x ≥ -12/7.

Solution to the Second Inequality: 4(x - 1) - (9 - 5) ≥ 7

To solve the inequality 4(x - 1) - (9 - 5) ≥ 7, we can follow these steps:

Step 1: Simplify both sides of the inequality: - 4(x - 1) - (9 - 5) ≥ 7 - 4x - 4 - 4 ≥ 7 - 4x - 8 ≥ 7

Step 2: Move the constant term to the other side of the inequality: - 4x - 8 + 8 ≥ 7 + 8 - 4x ≥ 15

Step 3: Divide both sides of the inequality by the coefficient of x, which is 4: - (4x) / 4 ≥ 15 / 4 - x ≥ 15/4

Therefore, the solution to the inequality 4(x - 1) - (9 - 5) ≥ 7 is x ≥ 15/4.

Please note that these solutions are based on the given inequalities and the steps used to solve them. If there are any errors or if you need further clarification, please let me know!