The steps shown in the solution process involve multiplying both sides of the inequality by 34. The property of inequality that justifies this step is the Multiplication Property of Inequality.
This property states that if you multiply both sides of an inequality by a positive number, the direction of the inequality remains the same. Since 34 is positive, it applies here.
Therefore, the correct justification for the step \(34(43)d \geq -20(34)\) is:
Multiplication Property of Inequality.