Solve for a
a=\frac{2}{9}\approx 0.222222222
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-a-4=6-2a-8a-8
Combine 2a and -3a to get -a.
-a-4=6-10a-8
Combine -2a and -8a to get -10a.
-a-4=-2-10a
Subtract 8 from 6 to get -2.
-a-4+10a=-2
Add 10a to both sides.
9a-4=-2
Combine -a and 10a to get 9a.
9a=-2+4
Add 4 to both sides.
9a=2
Add -2 and 4 to get 2.
a=\frac{2}{9}
Divide both sides by 9.
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