The butterfly counts not months but moments, and has time enough. Rabindranath Tagore
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(/) Algebra 1 (/algebra-1/all/)
/ Foundations for Algebra (/algebra-1/algebra-foundations/)
/ Adding and Subtracting Real Numbers (/algebra-1/algebra-foundations/real-number-add-subtract/) / Subtracting Real Numbers (/algebra-1/algebra-foundations/real-number-add-subtract/real-number-subtract/) (/worksheethelper.php?tutid=alg1_2zl)
Subtracting a positive is the same thing as adding a negative. Subtracting a negative is the same as adding a positive. Get a closer look with this tutorial!
skill
addition
subtraction
rewrite subtraction as addition
subtraction as addition
Introduction to Algebraic Expressions What is a Variable? (/algebra-1/algebra-foundations/variablesexpressions/algebraic-expressions/variables-definition) You can't do algebra without working with variables, but variables can be confusing. If you've ever wondered what variables are, then this tutorial is for you! (/algebra-1/algebrafoundations/variablesexpressions/algebraicexpressions/variablesdefinition)
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