7A + 3
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
9a + 1
a2 + 7a - 8a2 = 6a7 ∴ a2 + 7a - 8a2- 6a7 = 0 ∴ a + 7 - 8a - 6a6 = 0 ∴ 7 - 7a - 6a6 = 0 ∴ 6a6 + 7a - 7 = 0
7a
3a+5b+7a=
-7a + 3a = -4a
(7a=3)=(-a-5)=16
It is: 2a+5a = 7a when simplified
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
a + 3a - 2 + 3a. Add the a + 3a + 3a = 7a. You can't combine the -2 & 7a so the solution is: 7a - 2.
555
7a
7A + 3
10a+7b undefined variables cannot be determined