Question 157617
# 1


{{{4a-(a+6)=12-36}}} Start with the given equation.



{{{4a-a-6=12-36}}} Distribute.



{{{3a-6=12-36}}} Combine like terms on the left side.



{{{3a-6=-24}}} Combine like terms on the right side.



{{{3a=-24+6}}} Add {{{6}}} to both sides.



{{{3a=-18}}} Combine like terms on the right side.



{{{a=(-18)/(3)}}} Divide both sides by {{{3}}} to isolate {{{a}}}.



{{{a=-6}}} Reduce.



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Answer:


So the answer is {{{a=-6}}} 




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# 2


You forgot an equal sign.


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# 3



{{{2x-3(x-9)-2(x-3)=0}}} Start with the given equation.



{{{2x-3x+27-2x+6=0}}} Distribute.



{{{-3x+33=0}}} Combine like terms on the left side.



{{{-3x=0-33}}} Subtract {{{33}}} from both sides.



{{{-3x=-33}}} Combine like terms on the right side.



{{{x=(-33)/(-3)}}} Divide both sides by {{{-3}}} to isolate {{{x}}}.



{{{x=11}}} Reduce.



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Answer:


So the answer is {{{x=11}}}