\[2x\times 2=10\]

1
Simplify  2x×22x\times 2  to  4x4x.
4x=104x=10

2
Divide both sides by 44.
x=104x=\frac{10}{4}

3
Simplify  104\frac{10}{4}  to  52\frac{5}{2}.
x=52x=\frac{5}{2}

Done

Decimal Form: 2.5

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