It is an expression of two terms as: 4a+12
"a" plus "3a" is equal to 4a. (3a+a=4a). You already have 3 "a's" and then you add another "a."
4a
7a-2b
It is: 7a+1 when simplified
4a+2b-1a+9b combine all alike variables using commutative property of addition 4a-1a+2b+9b Then add the like variables 3a+11b
4a+3-a =12 4a-a = 12-3 3a = 9 a = 3
5ab-2ab+4a-b+5b = 3ab+4a+4b
4a
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!
5
a=-12
The question contains neither an expression nor an equation (or inequality). There can, therefore be no sensible answer.
8a+4a=144 12a=144 12a/12=144/12 A=144
The Answer is 4a so you are asking why it is 4a. So just take an a and think it as 1a boom
It is -44 + 4a
a < -12
2 x (2a + 3b - 6)