The question requires the student to solve a linear equation in one variable, where the distributive property must be applied on both sides and variables appear on both sides of the equation. Among the retrieved TEKS, math:A.5A is the only one that explicitly requires solving linear equations in one variable, including those for which application of the distributive property is necessary and for which variables are included on both sides. This matches the full cognitive demand of the question, which goes beyond simply solving equations with variables on both sides (math:8.8C) by specifically including the distributive property. The other candidates do not address both the distributive property and variables on both sides. The grade level confidence is high, as this is a core Algebra I expectation.
TEKS: Solve linear equations using distribution and variables on both sides.
Concepts: solving linear equations, distributive property, variables on both sides, combining like terms
Grounded classification
Retrieved 10 database candidates. The model selected a verified record. Official web evidence was also consulted.
Sources: Selected TEKS record, TEKS Breakouts