MathCastle
Grade 6HardExpressions

Expressions · Hard problem

To simplify 4(2x+3)−x4(2x+3)-x, Jon distributes the 44 only to the 2x2x term and writes 8x+3−x=7x+38x+3-x=7x+3. His answer is wrong. What is the CORRECT simplified expression's value when x=5x=5?