If your problem looks like this: 4a-a=_ the answer is... 3a
a=-12
4a + 4b is one possible answer.
a < -12
(4a/5) x (3/a) = (12a/5a) = 12/5 = 2.4
It is an expression of two terms as: 4a+12
4a+3-a =12 4a-a = 12-3 3a = 9 a = 3
A = 7. 4a + 3 - a = 24 4a - a = 21 3a = 21 a = 7
5ab-2ab+4a-b+5b = 3ab+4a+4b
If your problem looks like this: 4a-a=_ the answer is... 3a
"a" plus "3a" is equal to 4a. (3a+a=4a). You already have 3 "a's" and then you add another "a."
It depends on the exact form. If it is 4a + 12/(a + 3) then a cannot be -3 However, (4a + 12)/(a + 3) simplifies to 4. So there is no variable to worry about!
a is equal to 1.
a=-12
4a + 4b is one possible answer.
8a+4a=144 12a=144 12a/12=144/12 A=144
The question contains neither an expression nor an equation (or inequality). There can, therefore be no sensible answer.