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Cassandra measured her height as 63 inches. That is 6 inches less than 3 times her younger brother’s height How tall is her younger brother

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Let's denote Cassandra's younger brother's height as \( x \) inches.

According to the information provided, Cassandra's height (63 inches) is 6 inches less than 3 times her brother's height. We can write this relationship as an equation:

\[ 63 = 3x - 6 \]

Now, let's solve for \( x \).

  1. Add 6 to both sides of the equation:

\[ 63 + 6 = 3x \] \[ 69 = 3x \]

  1. Now divide both sides by 3:

\[ x = \frac{69}{3} = 23 \]

So, Cassandra's younger brother is 23 inches tall.