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6.13: Equations with Letters Extras

Difficulty Level: At Grade Created by: CK-12

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.

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CK.MAT.ENG.SE.1.Algebra-Explorations-K-7.6.13