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Anonymous
3(a+4) = 3a+12
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It is 6a + 4
4a+3a-4 = 10 4a+3a = 10+4 7a = 14 a = 2
(5a+8) - (2a+4) =3a +4 To do this, simply subtract like terms. 5a-2a=3a and 8-4=4
= a + b - 2
When simplified it is: 2a+8b+4