Algebra I
If an equation has a positive constant, then it can be eliminated by subtraction. Remember, for every positive number there's a number that can be subtracted from it to equal zero.
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Combine Like Terms
Solve Equations by Adding
Solve Equations by Subtracting
Solve Equations by Multiplication
Solve Equations by Division
Multi-Step Equations
Equations with Variables on Both Sides
Formulas
Absolute Value Equations
Ratios
Proportions
Percentages