4a ( 3b + 2 ) - 2b ( 3 + 6a ) - ( - 6b ) =
= 12 ab + 8a - 6b - 12ab + 6b =
= 8a
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Verified answer
4a ( 3b + 2 ) - 2b ( 3 + 6a ) - ( - 6b ) =
= 12 ab + 8a - 6b - 12ab + 6b =
= 8a