```Question 174144
I'll do the first three to get you started

# 1

{{{5x+6x-18-9=18}}} Distribute.

{{{11x-27=18}}} Combine like terms on the left side.

{{{11x=18+27}}} Add {{{27}}} to both sides.

{{{11x=45}}} Combine like terms on the right side.

{{{x=(45)/(11)}}} Divide both sides by {{{11}}} to isolate {{{x}}}.

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So the answer is {{{x=45/11}}} which approximates to {{{x=4.091}}}.

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# 2

{{{10-8a+9-3a+27+3=96}}} Distribute.

{{{-11a+49=96}}} Combine like terms on the left side.

{{{-11a=96-49}}} Subtract {{{49}}} from both sides.

{{{-11a=47}}} Combine like terms on the right side.

{{{a=(47)/(-11)}}} Divide both sides by {{{-11}}} to isolate {{{a}}}.

{{{a=-47/11}}} Reduce.

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So the answer is {{{a=-47/11}}} which approximates to {{{a=-4.273}}}.

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# 3

{{{3+9z=-3z}}} Combine like terms on the left side.

{{{9z=-3z-3}}} Subtract {{{3}}} from both sides.

{{{9z+3z=-3}}} Add {{{3z}}} to both sides.

{{{12z=-3}}} Combine like terms on the left side.

{{{z=(-3)/(12)}}} Divide both sides by {{{12}}} to isolate {{{z}}}.

{{{z=-1/4}}} Reduce.

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