\[8x+9=2\]
1
Subtract 99 from both sides.
8x=2−98x=2-9

2
Simplify  2−92-9  to  −7-7.
8x=−78x=-7

3
Divide both sides by 88.
x=−78x=-\frac{7}{8}

Done

Decimal Form: -0.875

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