Substitution
Evaluate when r = 3 and s =4
5r + s - 4
15
What is the prime factorization of 36?
22 x 32
Translate "The sum of a number x and 5" into an algebraic expression.
x + 5
Rewrite 12 + 8 using a common factor.
4(3 +2)
Write an equivalent expression:
3(3y - x) - x + 5y
-4x + 14y or 14y - 4x
Evaluate when r = 3 and s =4
35 - 3r + 2s
34
Express 100 as a product of prime factors.
22 x 52
6x - 7
Rewrite 20 + 15 using a common factor
5(4 + 3)
Write an equivalent expression: -4(3x - y) +18
-12x +4y + 18
Evaluate when r = 3 and s =2
4s2 - (15 - r)
4
What is the prime factorization of 48?
24 x 3
Write an expression for the total cost if each item costs $2 and you buy x items.
2x
Rewrite 18 + 30 with a common factor.
6(3 +5)
Write an equivalent expression: -7x + 3y - 25 + x
-6x + 3y - 25
Evaluate when r = 3 and s =4
(r2 + 7) + s
20
Express 60 as a product of its prime factors.
22 x 3 x 5
Translate this description into an algebraic expression: "The difference between 3 times a number in feet and 5 feet."
5 - 3x
Complete the equation: 144 + 120 = 24(____ + ____)
144 + 120 = 24(6 + 5)
4x - 5 + 2x + 17
3(2x + 4)
Evaluate when r = 3 and s =4
(4rs)/3 + 8
24
What is the prime factorization of 336?
24 x 3 x 7
Write an expression that represents the height of a tree that was initially measured at 4.2 ft. after a given number of years if the tree grows 2.3 feet per year. Use the variable x.
4.2 + 2.3x
Jason buys two video games. One costs $42 and the other costs $63. Which expression CANNOT be used to calculate the total cost?
A. 7(6 + 9)
B. 3(14 + 21)
C. 1(42 + 63)
D. 14 (3 + 4)
D.
Generate an equivalent expression:
−3x + 10y - 20 - 6x + 2y - 10?
-9x + 12y - 30 or 3(-3x + 4y -10) or -3(3x - 4 + 10)