6th grade Simultaneous equations Math Quiz - To complete this quiz it is absolutely important that the students find the values of x and y mentioned in the sums. The two methods of solving this equation is done by elimination and substitutions. As these equations have more than one value, a sixth grader is cleanly taught on how to sort the two variables. To find the value of x and y either method could be chosen and done with as it would be all the same. As these questions specify solving only two equations it could be done in a small limited time frame which would be convenient to move to the other quizzes. Learn to find the values of two missing variables in two equations at once (simultaneouly), online math quiz.