Question

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?

Write an equation in the form px+q=r
to represent this problem.

(2 points)
x
+
=

Answer 1

Let x = her younger brother’s height (in inches). Equation: 3x - 6 = 63.
Solve: 3x = 69, so x = 23.
He is 23 inches tall.