Two-step equation word problem: oranges (Full video)

Khan Academy

Supporting grades: 7

Description: Learn how to solve a word problem by writing an equation to model the situation. In this video, we use the linear equation 210(t - 5) = 41,790. Created by Sal Khan. MacDonald had a farm with a certain number of orange trees. So this is the number of trees initially. Well, he started with t, and he had to cut down 5, so he's going to have t minus 5 trees now.

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