Chapter 3
x + 5 - 3x - 6
-2x - 1
3(2x - 5y) (x=3 & y=4)
-42
x + 3y (x=3 & y=4)
15
3q^2 x 5q
15q^3
3x + 2y (x=3 & y=4)
17
Mr. Turner bought x boxes of pencils. Each box holds 25 pencils. He left 3 boxes of pencils at home and took the rest to school. What expression represents the total number of pencils he took to school?
25x - 75
d + d - (a + a + a + a)
2d - 4a
k + k - 3 x d x d x d
2k - 3d^3
6x^4y^3/3x^2y
2x^2y^2
-y - -3y
2y
3^2 x 3^3
3^5
r + r + r + s + s
3r + 2s
3 x (r + s) (distributive property)
3r + 3s
3 + 4r (coefficient)
4
p^2 + q^2 - 5pq + 17 (number of terms)
4
(4 x k) + (m x 3)
4k + 3m
5^4/ 5^1
5^3
4a - 3b + - a -4b
5a - 7b
5a^3/a
5a^2
2b^2 x 3a^2b^3
6a^2b^5
2a x 3b
6ab
t x 6s
6st
5y - -2y
7y
8 x b x b x a x a x a
8a^3b^2
Twice a number less than nine
9 - 2x
Constant
A term which does not contain a variable
add, sum, more than, exceeds, in all, total, gain, plus
Addition
Terms
Algebraic forms which are separated by + or - signs, the signs being included.
Equation
An algebraic for which contains an = sign.
Expression
An algebraic form consisting of numbers, variables, and operation signs.
Variable
An unknown value that is represented by a letter or symbol.
divide, quotient, divided equally, per, ratio of
Division
-2a, -30a (like or unlike terms)
Like terms
multiplied by, of, product, times, double, twice, triple
Multiplication
subtract, difference, less than, decreased by, diminished by, minus, fewer, reduced
Subtraction
Coefficient
The number factor of an algebraic term ( number in front of a letter).
-2x^2, 100a (like or unlike terms)
Unlike terms
b x a - c
ab - c
x/2 = 6/x (equation or expression)
equation
x^2 + 7x +10 (equation or expression)
expression
p x q + r
pq + r
Like terms
terms with exactly the same variable factors (same letter, same exponent).
Ten more runs than the Yankees.
x + 10
2 + x + 4
x + 6
The quotient of a number and fifteen.
x/15