Solve the inequality: 7x + 9 ≥ 72.
Note
Subtract 9 from both sides: 7x ≥ 63. Then divide by positive 7, so the inequality sign stays the same. The solution is x ≥ 9.
Solve the inequality: 7x + 9 ≥ 72.
Subtract 9 from both sides: 7x ≥ 63. Then divide by positive 7, so the inequality sign stays the same. The solution is x ≥ 9.