d ( 4 . x ) = 9
Solve for d
d=\frac{9}{4x}
x\neq 0
Solve for x
x=\frac{9}{4d}
d\neq 0
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4xd=9
The equation is in standard form.
\frac{4xd}{4x}=\frac{9}{4x}
Divide both sides by 4x.
d=\frac{9}{4x}
Dividing by 4x undoes the multiplication by 4x.
4dx=9
The equation is in standard form.
\frac{4dx}{4d}=\frac{9}{4d}
Divide both sides by 4d.
x=\frac{9}{4d}
Dividing by 4d undoes the multiplication by 4d.
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