\[4x+9=8\]
1
Subtract 99 from both sides.
4x=8−94x=8-9

2
Simplify  8−98-9  to  −1-1.
4x=−14x=-1

3
Divide both sides by 44.
x=−14x=-\frac{1}{4}

Done

Decimal Form: -0.25

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