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![\bf \boxed{26}~\hspace{5em} 5x+2=7x-6\implies 8=2x\implies \cfrac{8}{2}=x\implies 4=x \\\\[-0.35em] ~\dotfill\\\\ \boxed{27}~\hspace{5em} 11x-12=8x+3\implies 3x=15\implies x=\cfrac{15}{3}\implies x=5 \\\\[-0.35em] ~\dotfill\\\\ \boxed{28}~\hspace{5em} 5x+13=9x-23\implies 36=4x\implies \cfrac{36}{4}=x\implies 9=x](/tpl/images/0078/8429/39185.png)
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