6a + 2
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6a + 4 = 5a - 2 means that 6a - 5a = -2 - 4 which gives a = -6
It simplifies to 5a+4 !
13a - 6 + a = 5a + 3 + 3a 13a + a - 5a - 3a = 3 + 6 6a = 9 6a/6 = 9/6 a = 3/2
(5a+8) - (2a+4) =3a +4 To do this, simply subtract like terms. 5a-2a=3a and 8-4=4
6-3a**2+7+4a-5a+18 3a**2-1a+31