\[4x+7=9\]
1
Subtract 77 from both sides.
4x=9−74x=9-7

2
Simplify  9−79-7  to  22.
4x=24x=2

3
Divide both sides by 44.
x=24x=\frac{2}{4}

4
Simplify  24\frac{2}{4}  to  12\frac{1}{2}.
x=12x=\frac{1}{2}

Done

Decimal Form: 0.5

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