Solve real-world and mathematical problems by writing and solving equations of the form x + p = q and px = q for cases in which p, q and x are all nonnegative rational numbers.
Solve one-step equations, both word problems and mathematical problems. Also, identify mistakes in solving one-step equations. Conclude by giving your students this challenge. Its prereqs include distributing and combining like terms, and being able to solve one-step equations.