Question 183279
{{{2.4(n-1)=12}}} Start with the given equation.



{{{24(n-1)=120}}} Multiply both sides by 10.



{{{24n-24=120}}} Distribute.



{{{24n=120+24}}} Add {{{24}}} to both sides.



{{{24n=144}}} Combine like terms on the right side.



{{{n=(144)/(24)}}} Divide both sides by {{{24}}} to isolate {{{n}}}.



{{{n=6}}} Reduce.



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Answer:


So the answer is {{{n=6}}}