it’s 12pm I can’t do this anymore, help
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[tex]\\ \rm\longmapsto ST=TU[/tex]
[tex]\\ \rm\longmapsto 8x+11=12x-1[/tex]
[tex]\\ \rm\longmapsto 8x-12x=-1-11[/tex]
[tex]\\ \rm\longmapsto -4x=-12[/tex]
[tex]\\ \rm\longmapsto 4x=12[/tex]
[tex]\\ \rm\longmapsto x=\dfrac{12}{4}[/tex]
[tex]\\ \rm\longmapsto x=3[/tex]