Chapter 2 - Reasoning and Proof - 2-5 Reasoning in Algebra and Geometry - Got It? - Page 114: 1

$x=75$

Work Step by Step

$\overset\longrightarrow{AB}$ bisects $\angle RAN$ Use the definition of bisects. $m\angle RAB=m\angle BAN$ Substitution property. $x=2x-75$ Subtraction property of equality. (Subtract 2x) $-x=-75$ Multiplication property of equality. (Multply by -1) $x=75$

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