Question

Please can someone help

Answer 1

Check the picture below.

`\stackrel{ \textit{A is three times ou}\textit{tput of B} }{A~~ = ~~3B}\implies 7x-6~~ = ~~3(3x+2)\implies 7x-6=9x+6 \\\\\\ -6=2x+6\implies -12=2x\implies \cfrac{-12}{2}=x\implies \boxed{-6=x}`