5a + 3 + (2a - 2) + a= 5a + 3 + 2a - 2 + a= 8a + 1
5a
2a + 5a + 3a = 10a
2a+5a+9a = 16a
The statement is false. 5a +6 = 5a + 30 Subtract 5a from both sides: 6 = 30 and that is plain and simple rubbish!
5a + 20 = ? Your question is incomplete.
6b+5a-4b+3a= ? Rearrange it as 5a+3a+6b-4b = 8a+2b
2a + 10 + 5a - 2 = (2a + 5a) + (10 - 2) = 7a + 8
a + 3a + 5a = 180 9a =180 a = 20
7a + 4 = 5a + 7 7a = 5a + 3 2a = 3 a = 3/2
It is not an equation but an algebraic expression that can be simplified to: 12b-5a
It cannot be simplified any further, so it is: 5a³ + 15a² + 20a