[tex]\bold{Hello!}\\\bold{Your~Answer~Is~Below!}[/tex]
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[tex]\bold{Solution~Steps:}[/tex]
1.) Subtract 2x from both sides.
2.) Subtract 18 from both sides.
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[tex]\bold{Answer:}[/tex]
[tex]\boxed{x=21}[/tex]
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[tex]\bold{Hope~this~helps,}\\\bold{And~best~of~luck!}\\\\\bold{~~~~~~~-TotallyNotTrillex}[/tex]