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One-Step Equations and Inverse Operations
Add and subtract like terms as a step to solve equations.
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Solving One Step Equations
A constant is a value that does not change. In Algebra, this is a number such as 3, 12, 342, etc., as opposed to a variable such as
An equation is a mathematical sentence that describes two equal quantities. Equations contain equals signs.
Inverse operations are operations that "undo" each other. Multiplication is the inverse operation of division. Addition is the inverse operation of subtraction.
A linear equation is an equation between two variables that produces a straight line when graphed.
In mathematical expressions, the numerical coefficients are the numbers associated with the variables. For example, in the expression
, 4 is the numerical coefficient and
is the variable.
The reciprocal of a number is the number you can multiply it by to get one. The reciprocal of 2 is 1/2. It is also called the multiplicative inverse, or just inverse.
A variable is a symbol used to represent an unknown or changing quantity. The most common variables are a, b, x, y, m, and n.
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This lesson covers solving an equation with one step.
March 12, 2013
April 23, 2015
order of operations
MAT.ALG.220 (One-Step Equations and Inverse Operations)
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