Math Vocab
variable
a letter representing a value
-(3a-2)
-3a+2
48+6
6(1+8)
6x+4y
x=-6 y=9
0
the product of a number and 5
5n
An algebraic expression is in simplest form when it has __ __ __ an __ __.
No Like Terms and No Parenthesis
-6(8x+7)
-48x-42
16y+32
16(y+2)
6(2+4)
36
the difference of a number and 16
n-16
coefficient
the number next to a variable
6(4+-2)
12
12+18
2(6+9)
6(12)-7r
r=-5
107
5 taken away from the product of x and 7
7x-5
Constant
a number in which its value doesn't change
18+8
2(9+4)
72+12
12(6+1)
3(4)+6y
y=9
66
4 added to 8 times the quantity of 6 and r
4 + 8(6/r)
Substitution
replacing the variable with a number
-3(x+5)
-3x-15
14+6
2(7+3)
9x+6z-5
31
n taken away from the sum of x and 5
(x+5) - n