6.13: Equations with Letters Extras Difficulty Level: At Grade Created by: CK-12 Share Add to Library Read Resources Details Extras for Experts - Equations with Letters – Write and Solve Equations Solutions 1.8+x+x=16; x+x+y+y=18; x+y+y+z=20 x=4 pounds; y=5 pounds; z=6 pounds 2.11+y+y=17; y+z+z=17; x+x+y+z=20 x=5 pounds; y=3 pounds; z=7 pounds 3.10+z+z=20; y+y+z+z=18; x+x+y+z+z=26 x=6 pounds; y=4 pounds; z=5 pounds Write equations. Figure out the weights of the blocks. Image Attributions Show Hide Details Description No description available here... Tags: bar graphs CK.MAT.ENG.SE.1.Algebra-Explorations-K-7.6 comparing numbers (8 more) function tables grid relationships multiple-step functions one-step functions proportional reasoning using data variables writing and solving equations Subjects: mathematics Date Created: Feb 23, 2012 Last Modified: May 14, 2015 Files can only be attached to the latest version of section Read More