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20 votes
20 votes
Find X and RDB:


X=____

RDB=____

Find X and RDB: X=____ RDB=____-example-1
User Useless Intern
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(13x+7-60)/(2)=5x-10 \\ \\ 13x-53=10x-20 \\ \\ 3x-53=-20 \\ \\ 3x=33 \\ \\ \boxed{x=11} \\ \\ m\angle RDB=5(11)-10=\boxed{45^(\circ)}

User SteveSt
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