Mathematics

Giada Stewart

26 February, 09:03

Isaac is trying to solve the problem below. The length of a rectangle is 7 inches greater than the width. The perimeter is 70 inches. What is the width of the rectangle? Isaac solved an equation, and the solution was w = 14. He then made sure that a rectangle with width 14 inches and length 21 inches had a perimeter of 70 inches. Which problem-solving step was this?

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