\[4x-8=2\]
1
Add 88 to both sides.
4x=2+84x=2+8

2
Simplify  2+82+8  to  1010.
4x=104x=10

3
Divide both sides by 44.
x=104x=\frac{10}{4}

4
Simplify  104\frac{10}{4}  to  52\frac{5}{2}.
x=52x=\frac{5}{2}

Done

Decimal Form: 2.5

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