Arkansas Curriculum Frameworks
AR.Math.Content.7.EE. Expressions and Equations
AR.Math.Content.7.EE.A. Use properties of operations to generate equivalent expressions.
AR.Math.Content.7.EE.A.2. Understand how the quantities in a problem are related by rewriting an expression in different forms. For example: a + 0.05a = 1.05a means that "increase by 5%" is the same as "multiply by 1.05". or the perimeter of a square with side length s can be written as s+s+s+s or 4s.
AR.Math.Content.7.EE.B. Solve real-life and mathematical problems using numerical and algebraic expressions and equations.
AR.Math.Content.7.EE.B.4. Use variables to represent quantities in a real-world or mathematical problem. Construct simple equations and inequalities to solve problems by reasoning about the quantities.
AR.Math.Content.7.EE.B.4.A. Solve word problems leading to equations of these forms px + q = r and p(x + q) = r, where p, q, and r are specific rational numbers. Solve equations of these forms fluently.