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[tex]6 = \frac{x + 2}{3} \\ [/tex]
[tex] \frac{x + 2}{3} = 6 \\ [/tex]
Multiply sides by 3
[tex]3 \times \frac{x + 2}{3} = 3 \times 6 \\ [/tex]
[tex]x + 2 = 18[/tex]
Subtract sides 2
[tex]x + 2 - 2 = 18 - 2[/tex]
[tex]x = 16[/tex]
Done...
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