One-step subtraction equations (Full video)

Khan Academy

Supporting grades: 6

Description: Learn how to solve this equation: a + 5 = 54 . Created by Sal Khan. Solve for a and check your solution. So in general, whenever you have an equation like this, we want to have the variable. Well, the best way to get rid of a plus 5, or a positive 5, is to subtract 5.

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