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The GCF is 5a.
5a = a + a + a + a + a
5a = -5a + 5Add 5a to each side:10a = 5Divide each side by 10:a = 5/10 = 1/2
(5a)^2 or a^2+10a+25
30-5a = 25
6b-5a = 1
2a - 5a = -3a
5a-20 = -15
5a- 2a = 3
5a-20=
5a x a = 5a2
The statement is false. 5a +6 = 5a + 30 Subtract 5a from both sides: 6 = 30 and that is plain and simple rubbish!