MATH HELP? INEQUALITY?

Question

Solve the inequality:
 n
 _   +5>4
 -3

and solve this one too

3a-4 ≥ 5

Answer 1

1) n/-3+5 > 4

Subtract 5 from each side.

n/-3+5-5 > 4-5

n/-3 >-1

Multiply to each side by negitive 3 and change the symbol.

n/-3*-3 < -1*-3

n < 3

2) 3a-4 ≥ 5

Add 4 to each side.

3a-4+4 ≥ 5+4

3a ≥ 9

Divide to each side by 3.

3a/3 ≥ 9/3

a ≥ 3

Solution n < 3 and a ≥ 3