Math Vocabulary
A term used to describe a "math phrase" that does not have an equal sign.
Expression
x - 8 = 4
x= 12
6x – 13 = 11
x= 4
4x + 3 = 7
x = 1
5n - 2 - 8n = - 14
n = 4
A term used to describe a "math statement" that has an equal sign.
Equation
12 + x = 0
x= -12
14 = 3x + 5
x= 3
4(6 + 5q) = 124
q = 5
p = 0
A term used to describe a "fixed and unchanging number" used in expressions and equations.
Constant
3 = -2 – m
m= -5
p/2 +10=-8
p= -36
WILD CARD - BONUS 100 POINTS - IF CORRECT
-108 = -8(x + 6) - 4
x = 7
6(6n - 2) - 8n = - 40
n = -1
A term used to describe what is "unknown" in algebraic expressions and equations.
Variable
WILD CARD - BONUS 100 POINTS - IF CORRECT
-5x = -80
x= 16
(x+2)/4=10
x= 38
172 = 5(4a + 6) + 2
a=7
5 = 4 - 3d + 6 - 9d
d= 5/12
WILD CARD - BONUS 100 POINTS - IF CORRECT
A type of math where numbers and symbols are used to formulate expressions and equations.
Algebra
x/2=-16
x= -32
12 + k/3 = -3
k= -45
-93 = 7(-3k - 8) + 5
k = 2
-5(8n - 4) + 4n = - 16
n = 1
A numerical constant multiplied by the variable in an algebraic expression (e.g. the "4" in 4x).
Coefficient
8 = w/4
w = -32
25= 1/4n-3
n = 112
Write the equation: You buy 3 books that each cost the same amount and a magazine, totaling $55.99. The magazine cost $1.99. How much does each book cost?
Solve for 100 BONUS points.
EQUATION: 3b + 1.99 = 55.99
BONUS: Each book costs $18.00.
- 4 = 3x + 2(x - 3) - 2x
x= 2/3