Question

86n + 13 ≤ 99 or n + 90 ≥ 97

Does anybody know the answer?

Answer 1

n ≤ 1 or n ≥ 7

Explanation:

solve each part separately

86n + 13 ≤ 99 ( subtract 13 from both sides )

86n ≤ 86 ( divide both sides by 86 )

n ≤ 1

n + 90 ≥ 97 ( subtract 90 from both sides )

n ≥ 7

solution is n ≤ 1 or n ≥ 7