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## Simplifying Expressions
– Like Terms & Combining Like Terms – Simplifying Expressions
like terms if theysatisfy BOTH of the following conditions: – The variables must be the same – The variables must be raised to the same power • To add like terms, add the coefficients (numbers) and retain the variable
a) 2x + 7 – 5 + x – 1 • Recall the Distributive Property:a(b + c) = a · b + a · c • Usually no operation next to the number outside of the parentheses – Implied to be multiplication • To simplify an expression: – Apply the Distributive Property if necessary – Combine any like terms
a) 4(2x – 5) + 3(x + 1)
a) The difference of (5x – 9) and (x + 2)
know how to do the following: – Identify and combine like terms – Simplify expressions • Additional Practice – See the list of suggested problems for 1.8 • Next lesson – Addition Property of Equality (Section 2.1) |