Question 344288
{{{2(a-4)+15=13}}} Start with the given equation.



{{{2a-8+15=13}}} Distribute.



{{{2a+7=13}}} Combine like terms on the left side.



{{{2a=13-7}}} Subtract {{{7}}} from both sides.



{{{2a=6}}} Combine like terms on the right side.



{{{a=(6)/(2)}}} Divide both sides by {{{2}}} to isolate {{{a}}}.



{{{a=3}}} Reduce.



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Answer:


So the solution is {{{a=3}}} 



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