7a
9a-a = 19+7a 8a = 19+7a 8a - 7a = 19 + 7a - 7a 1a = 19 a = 19
It is: 2a+5a = 7a when simplified
7a 7a * 4 = 28a 7a * 7b = 49ab
7a+a=8a
-7a + 3a = -4a
It is: 7a/5xy
The relevant expression is 7a.
The variable is a. You can solve for it, like this: 8a - 9 = 7a - 6 8a = 7a + 3 8a - 7a = 3 a = 3
The GCF is 7a.
1
a2 + 7a - 8a2 = 6a7 ∴ a2 + 7a - 8a2- 6a7 = 0 ∴ a + 7 - 8a - 6a6 = 0 ∴ 7 - 7a - 6a6 = 0 ∴ 6a6 + 7a - 7 = 0