Answer:
12+3x
Explanation:
sepereate 3 into the two numbers in the parentheses
3 times 4 = 12
3 times x = 3x
since 3x has a variable and 12 doesnt you leave it as is since they aren't compatable
Take 3 and multiply it by 4x and then take 3 and multiply it by 2 and you will get 12x+6
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