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Expression or Equation?. Expression or Equation?. Define expression: A number, variable or the combination of numbers and variables with symbols. Define equation: A statement that two mathematical expressions equal each other. What is the difference?. Expression or Equation?. 6x-3
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Expression or Equation? Define expression: A number, variable or the combination of numbers and variables with symbols. Define equation: A statement that two mathematical expressions equal each other. What is the difference?
Expression or Equation? • 6x-3 • 3w+7=31 • xy+5
Expression or Equation? • 6x-3=15 • 3w+7 • xy+5=47
Write each expression as a phrase and each equation as a sentence. • 7x+9 • 14=5x-1 • 24-3x
Write each expression as a phrase and each equation as a sentence. • 4x=3+9 • 26+6x • 19=11+8y
Identify if the following are expressions or equations . . . 7x+9 14=5x-1 24-3x
Identify if the following are expressions or equations . . . 4x=3+9 26+6x 19=11+8y
Today’s Expression is12xWhich representations are equivalent to 12x? 20x – 8x + x 24x 2x 2(6x) Jane has $x more than Ellie, Ellie has $12. How much money does Jane have? 12 + x X * X * X * X * X * X * X * X * X * X * X * X Jane earns $x in allowance each week. How much money would she have in 12 weeks. 100 – 88x 36 12 (x) 3x + 9x x + x + x + x + x + x + x + x + x + x + x + x 3x(4x)