Solve the inequality n minus four sevenths is greater than or equal to negative two thirds for n.

n is greater than or equal to negative 2 over twenty one
n is less than or equal to two over twenty one
n is greater than or equal to negative twenty six over twenty one
n is less than or equal to twenty six over twenty one

1 answer

To solve the inequality n - 4/7 ≥ -2/3 for n, we can start by getting rid of the fractions.

First, we can multiply both sides of the inequality by 3 to eliminate the fraction -2/3 on the right side:

3(n - 4/7) ≥ -2/3 * 3

This simplifies to:

3n - 12/7 ≥ -6/3

Next, we need to get rid of the fraction 12/7. We can do this by multiplying both sides of the inequality by 7:

7(3n - 12/7) ≥ -6/3 * 7

This simplifies to:

21n - 12 ≥ -14

Now, we can add 12 to both sides of the inequality to get n by itself:

21n - 12 + 12 ≥ -14 + 12

This simplifies to:

21n ≥ -2

Finally, we can divide both sides of the inequality by 21 to solve for n:

n ≥ -2/21

So the solution to the inequality n - 4/7 ≥ -2/3 is n ≥ -2/21.