Equations+-+Step2+-+Introduction

What is an equation? > 2x = 3x > 5x = 2x + 3x > 4x + 5 = 3x + x + 4
 * What does the equals sign mean?
 * When both sides are EQUIVALENT, the equation BALANCES.
 * Are these equations valid?
 * Use Balancing Scales and tennis balls / weights to demonstrate BALANCING.

[|Scales Questions]