\[2x+8=3\]
1
Subtract 88 from both sides.
2x=3−82x=3-8

2
Simplify  3−83-8  to  −5-5.
2x=−52x=-5

3
Divide both sides by 22.
x=−52x=-\frac{5}{2}

Done

Decimal Form: -2.5

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