Answer
$2x=4$
Work Step by Step
The green tiles represent x, so if you add x to x it equals 2x. The black bar represents the equal sign and the 4 yellow tiles each represent 1, so if you add 1 to 1 to 1 to 1 it equals 4.
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 2 - Solving Equations - Concept Byte - Page 80: 2
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