\[3x+8=4\]
1
Subtract 88 from both sides.
3x=4−83x=4-8

2
Simplify  4−84-8  to  −4-4.
3x=−43x=-4

3
Divide both sides by 33.
x=−43x=-\frac{4}{3}

Done

Decimal Form: -1.333333

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