\[4x-10=10\]

1
Add 1010 to both sides.
4x=10+104x=10+10

2
Simplify  10+1010+10  to  2020.
4x=204x=20

3
Divide both sides by 44.
x=204x=\frac{20}{4}

4
Simplify  204\frac{20}{4}  to  55.
x=5x=5

Done

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