Released STAAR Algebra I EOC · 2026 · Item 17 · 2 points

Walkthrough: Algebra I 2026, Item 17

A.5A · Solving Linear Equations · unscored study

Triangle PQR has side PR labeled x centimeters, side PQ labeled 16 centimeters, and side RQ labeled 3 times the quantity x minus 2 centimeters. — Triangle PQROriginal visual from the released STAAR test.

The perimeter of triangle $PQR$ is $5x$ centimeters. What are the lengths of $\overline{PR}$ and $\overline{RQ}$ in centimeters?

$PR =$
$RQ =$

Answer bank: 5.5, 10, 10.5, 22, 24, 60

1. Understand the question

The perimeter is the sum of the three sides. Set that sum equal to $5x$ and solve.

Try the question on your own first, then reveal one step at a time.

2. Solve it step by step

Practice released items for this skill Back to the lesson

Question, artwork, answer key and rationale: Texas Education Agency released STAAR test. Walkthrough steps written by TEKSForge. Studying here does not change your mastery or scores.