Concept:Solve a linear inequality like an equation: collect the x terms on one side and numbers on the other. The sign flips only when you multiply or divide by a negative number.Solution:7−2x>15−4xAdd 4x to both sides (so the x term stays positive):7+2x>15Subtract 7 from both sides:2x>8Divide both sides by 2 (a positive number, so the sign stays >):x>4Check with x=5: left =7−10=−3, right =15−20=−5, and −3>−5 ✓.Answer:Option D (x>4)