6(-5u + 1) - 3(4u - 12)
first thing is to open the parentheses
6 x (-5u) + 6 x 1 -3 x 4u -3 x (-4)
-30u + 6 - 12u + 12
collecting the like terms
-30u - 12u + 6 + 12
= -42u + 18
the answer is -42u + 18
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