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Simplify by combining like terms.$$13 r-12 r$$
$r$
Algebra
Chapter 1
An Introduction to Algebra
Section 9
Simplifying Algebraic Expressions Using Properties of Real Numbers
The Language of Algebra
Equations and Inequalities
Functions
Linear Functions
Quadratic Functions
Polynomials
Missouri State University
University of Michigan - Ann Arbor
Idaho State University
Lectures
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we're being asked to simplify the expression by combining like terms or remember, like terms have the same variable race to the same exponents. So in this case, these are both like terms because they both have the variable are getting razed to the first power. So we simply need to combine their coefficients. So the way you want to think about this problem is, as the quantity of 13 minus 12 times are Well, they're a team minus one. Sorry. 13 minus 12 is one. So we're left with one R. But remember, we don't have to write that coefficient level one. So we can simply say that our answer is our
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