\[7x+6=1\]
1
Subtract 66 from both sides.
7x=1−67x=1-6

2
Simplify  1−61-6  to  −5-5.
7x=−57x=-5

3
Divide both sides by 77.
x=−57x=-\frac{5}{7}

Done

Decimal Form: -0.714286

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