The answer here is [tex]x=-1[/tex]
[tex]Explanation[/tex]
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[tex]-6x -6 = 0[/tex]
[tex]-6x - 6 +6 = 0+6[/tex]
[tex]-6x = 6[/tex]
[tex]-6x/-6 = 6/-6[/tex]
[tex]x = -1[/tex]