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Earn +20 ptsQ: Why can you only add or subtract like terms?
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How do you add and subtract like denominator?
You add or subtract only the numerators
How do you know if you will subtract or add in simplifying algebraic expressions?
Only like terms can be subtracted or added in algebraic expressions.
How is the procedure for adding like terms is similar to the procedure for adding fractions?
Adding like terms can be like adding fractions. You can only add fractions with a common denomonator. You can only combine terms together if they are like. Think of like terms as denomonators. You can only add if they are like.
To add and subtract fractions less than 1 you add or subtract only the what?
Numerators
How do you add and subtract algebraic expressions for example My homework says which expression represents the perimeter in units of this trapezoid?
To add and subtract algebraic expressions the simple rule of like terms applies. In your homework that asks for the expression represents the perimeter in units of this trapezoid you will need to find the like terms and simplify.
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