Solve word problems leading to equations of the form π±πΉ + π² = π³ and π±(πΉ + π²) = π³ where π±, π², and π³ are specific rational numbers; solve equations of these forms fluently; compare an algebraic solution to an arithmetic solution, identifying the sequence of the operations used in each approach.

Expressions and Equations

- Solve real-life and mathematical problems using numerical and algebraic expressions and equations.
Use variables to represent quantities in a real-world or mathematical problem, and construct simple equations and inequalities to solve problems by reasoning about the quantities.