(7a + 35)/-7 = 7(a + 5)/-7 = -(a + 5) = (-a - 5)
7A + 3
(a2 + 5a + 6)/(a - 2) = (a + 2)*(a 3)/(a - 2) which cannot be simplified further. It can, however be written as (a2 - 2a + 7a - 14 + 20)/(a - 2) which is (a + 7) + 20/(a - 2)
3a + 4a +/- 6; take the 3a & 4a and combine them; 7a +/- 6 would be your answer as 6 cannot combine with 7a due to the variable. If 7a +/- 6 = 0, then subtract/add (respectively) the 6 depending on the operation. Therefore 7a + 6 = 0 turns to 7a = -6. Divide the 7 with the -6 to get the a alone; a = -6/7 or -0.8. Cannot be simplified.
10a+7b undefined variables cannot be determined
a + 18 = 7a a-a +18 = 7a-a 18 = 6a 18/6 = 6a/6 3 = a 3=a
7a
7A + 3
It is: 7a+1 when simplified
(a2 + 5a + 6)/(a - 2) = (a + 2)*(a 3)/(a - 2) which cannot be simplified further. It can, however be written as (a2 - 2a + 7a - 14 + 20)/(a - 2) which is (a + 7) + 20/(a - 2)
3a+5b+7a=
It can be simplified to: -45a-15
It is: 2a+5a = 7a when simplified
-7a + 3a = -4a
You need to combine the different parts that contain the variable "a". Just add the coefficients together algebraically.
(7a=3)=(-a-5)=16
9a-a = 19+7a 8a = 19+7a 8a - 7a = 19 + 7a - 7a 1a = 19 a = 19
7a + 4 = 5a + 7 7a = 5a + 3 2a = 3 a = 3/2