7.11: XYZ Extras Created by: CK-12 Algebra Explorations, Pre-K through Grade 7 Algebra Explorations, Grade 5 Edit Review Was this helpful? Submit Review Skip Review Cancel Read Resources Details Extras for Experts XYZ - Solve Systems of Equations Solutions Eric wrote these equations to represent pictures of scales with blocks. Figure out the value of each unknown. Image Attributions Description No description available here... Categories: mathematics Grades: 5 Date Created: Feb 23, 2012 Last Modified: Apr 29, 2014 You can only attach files to None which belong to you If you would like to associate files with this None, please make a copy first.