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Expressions and Equations: Overview of Expressions and Equations
Solving Single-Variable Addition Equations
Description
Solving Single-Variable Addition Equations
Introduction
An addition equation contains a variable added to a number, and solving it means finding the value of the variable that makes the equation true. Understanding...
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Transcript
Ella is organizing her sticker album. Today, she added 28 new stickers. Now she has 45 stickers in total. But she doesn’t remember how many stickers she had at the beginning.
To find out, Ella uses x to represent the unknown number of stickers.
She knows she added 28 stickers to her starting amount to get a total of 45. So s...
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