Question 360819
{{{5d=9d-18}}} Start with the given equation.



{{{5d-9d=-18}}} Subtract {{{9d}}} from both sides.



{{{-4d=-18}}} Combine like terms on the left side.



{{{d=(-18)/(-4)}}} Divide both sides by {{{-4}}} to isolate {{{d}}}.



{{{d=9/2}}} Reduce.



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Answer:


So the solution is {{{d=9/2}}}