Question

5y + 9⩽ 3 – 7y ПЖЖЖЖЖЖЖЖЖЖЖ

Answer 1

5y-9 ≤ 3-7y

5у+7у ≤ 3+9

12у ≤ 12

у ≤ 1

Ответ: у∈(-∞;1]

Answer 2

To solve the inequality 5y + 9 ≤ 3 - 7y, you can follow these steps:

1. First, let's isolate the variable y on one side of the inequality. To do this, you can add 7y to both sides of the inequality to get the y terms on the left side:

   5y + 7y + 9 ≤ 3 - 7y + 7y

   This simplifies to:

   12y + 9 ≤ 3

2. Next, subtract 9 from both sides of the inequality to isolate the term with y:

   12y + 9 - 9 ≤ 3 - 9

   This simplifies to:

   12y ≤ -6

3. Now, divide both sides by 12 to solve for y:

   (12y)/12 ≤ (-6)/12

   This simplifies to:

   y ≤ -1/2

So, the solution to the inequality is:

y ≤ -1/2

This means that any value of y that is less than or equal to -1/2 will satisfy the original inequality.