2a + 3a + 4 = 5a + 4
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2a + 4b
If 3a+5=5a+3, then: 3a+5 - 3a = 5a+3 - 3a 5=2a+3 5 - 3=2a+3 - 3 2=2a a=1
a = 3a + 4 0 = 2a + 4 2a = -4 a = -2
5a + 4b - 3a =(5a - 3a) + 4b =2a + 4b =2 (a + 2b)
3a + (3b - 2a) + 5b =3a + 3b - 2a + 5b =(3a - 2a) + (3b + 5b) =a + 8b