Common Core State Standard
6.EE.B.5
Understand solving an equation or inequality as a process of answering a question: which values from a specified set, if any, make the equation or inequality true? Use substitution to determine whether a given number in a specified set makes an equation or inequality true.

CCSS: 6.EE.B.5
Race your motorcycle to the finish line. Race against some tough competitors and try and beat them all by finding the variables value in the algebra problems.