Multiplication
12X5=
60
x + 2 = 3
x = 1
2x + 1 = 7
x = 3
2x + 5 = -3x
x = -1
There are 7 basketballs, 9 baseballs, and 4 tennis balls.
What is a column?
Items or groups in an array going up and down or vertical
5 - x = 1
x = 4
16 - 3x = 4
x = 4
3x = 5x + 24
x = -12
Jill has 10 candies in her pocket. x - 2 of them are green and x of them are red. How many of each colour does she have?
6 are red and 4 are green
What is a row?
Items in an array going across or horizontal
2x = 6
x = 3
4x + 5 = 25
x = 5
4x + 1 = 4 + x
x = 1
Taylor is five times as old as Spenser. The sum of their ages is eighteen. How old are Taylor and Spencer?
Spenser is 3 years old and Taylor is 15 years old
What is an array?
Group of items in a set
2x+10=80
x = 35
22 - 3x = 7
x = 5
22 + 5x = 6 - 3x
x = -2
A father is three times as old as her daughter. Six years ago, the father’s age was six tines that of her daughter. How old are they now?
the daughter’s is 10 years old and the father is 30 years old
_____ is made up of two or more terms.
An expression
4 + x = 3 - 7
x = -8
x - 5 = 7
x = 2
3x + 4x + 2 = 9x - 12
x = 7
A coin collection amounting to $25 consists of nickels and dimes. There are 3 times as many nickels and dimes. There are 3 times as many nickels as dimes. How many coins of each kind are there?
100 dimes and 300 nickels