Solve the following question:
N + 4 = 11
What is N = 7
Solve the following equation:
2x – 8 = 20
what is x = 14
Solve the following equation:
k/4 + 3 = 10
What is k = 28
a) Solve the following equation:
4(p – 6) = 36
what is p = 15
A variable
What is a symbol, or letter used to represent an unknown number.
Solve the following question:
B - 7 = -4
What is B = 3
Solve the following equation:
– 4n + 2 = 18
what is n = – 4
Solve the following equation:
w/5 – 24 = – 29
What is w = – 25
b) Solve the following equation:
1/3(x – 7) = – 12
what is x = - 29
A coefficient
What is the number in front of the variable. The number the variable is multiplied by.
Solve the following equation:
m/4 = -13
What is M = -52
Solve the following equation:
– 17 + 10g = – 9
What is g = 4/5
Solve the following equation:
15 = – 5 + x/–6
what is x = –120
c) Solve the following equation:
-8(2x – 1) = 40
what is x = – 2
A constant
What is a number on its own in the equation
How many boxes of envelopes can you buy with $12 if one box costs $3? What is the let x statement? What is the equation?
What is 4 boxes?
let x= # of boxes you can buy?
What is 3x=12?
Lou had $20 to spend on four raffle tickets. After buying them you had $12. How much did each raffle ticket cost? What is the let x statement? What is the equation?
What is $2?
let x= the cost of each raffle ticket?
What is 12+4x=20?
A baseball team takes half of their supply of baseballs to the dugout. During the game 11 balls are caught by fans. At the end of the game 12 balls remain in the dugout. What was the team’s original supply of baseballs? What is the let x statement?
What is 46 balls?
Let x = the amount of baseballs originally had
what is ½ x – 11 = 12
The distance between Andrew’s house and his grandfather’s is 42 km. If Andrew rides his bike 2 km/h faster than he is currently riding he will get there in 3 hours. What is his current speed? What is the let x statement?
what is 12 km/h
let x = Andrew’s current speed
what is 3(x + 2) = 42
The error in the following solution:
2(p + 3) = 7
2p + 3 = 7
2p = 4
p = 2
What is the coefficient of 2 needs to be multiplied through the whole bracket. 2p + 6 = 7
How many packages of socks can you buy with $80 if one package costs $16? What is the let x statement? What is the equation?
What is 5 packages?
let x= the amount of packages of socks you can buy?
What is 16x=80?
Ashley won 40 lollipops playing hoops at her school's game night. Later, she gave two to each of her friends. She only has 4 remaining. How many friends does she have? What is the let x statement?
What is 18 friends?
let x= the amount of friends she has?
What is 2x+4=40?
The cost of a concert ticket for a student is $2 less than half the adult ticket. The student ticket costs $5. how much is an adult ticket? What is the let x statement?
what is $14
let x = the adult ticket cost
what is 1/2x - 2 = 5
Marla bought seven comic books for her collection. A week later half of all her comic books were destroyed in a fire. There are now only 22 comic books left. With how many did she start? What is the let x statement?
what is x = 37 comic books
let x = the number of comic books
what is ½(x + 7) = 22
The length of a rectangle is 4 m less than two times the width. The perimeter of the rectangle is 94 m. What are the dimensions of the rectangle? What is the let x statement?
What is width = 17 m, length = 30 m
let x = the width of the rectangle
length = 2x – 4
perimeter = 2(2x – 4) + 2x = 94
What is 6x – 8 = 94