SOLUTION: 19a-3(a-6)=66 whats a??

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Question 62163: 19a-3(a-6)=66 whats a??
Answer by UJIMUSHKU(3) About Me  (Show Source):
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19a-3(a-6)=66
multiply the 3 x (a-6)
19a-3a-18=66
combine like terms: Add 19a and -3a. Add 18 to both sides.
16a = 84
isolate the variable. Divide both sides by 16.
a = 84/16
reduce to a = 21/4