Question 576543
{{{3(y+3y)=12}}} Start with the given equation.



{{{3y+9y=12}}} Distribute.



{{{12y=12}}} Combine like terms on the left side.



{{{y=(12)/(12)}}} Divide both sides by {{{12}}} to isolate {{{y}}}.



{{{y=1}}} Reduce.



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Answer:


So the solution is {{{y=1}}}