Expansion
Expand 3(x + 4)
3x + 12
Factorise (6x + 9)
3(2x + 3)
Solve
x + 4 = 10
x = 6
Write an expression to represent...
2 more students coming into a room
x + 2
What is the rate in the equation.
C = 20x + 50
Rate is 20
Expand 5(10x - 3)
50x - 15
Factorise (14x + 20)
2(7x + 10)
Solve
10x - 4 = 16
Write an expression for...
The number of students is halved.
x/2
What is the call out fee in the equation below.
C = 45x + 100
Call out fee $100
Expand x(x - 11)
x2 - 11x
Factorise (12x - 18)
6(2x - 3)
Solve
3(2x + 4) + 6 = 48
x = 5
The quantity of food was tripled.
3x
Calculate the cost of a 4 hour job, when the business uses the following linear equation.
C = 25x + 100
$200
Expand 8(2x + 3) + 5x
21x + 24
Factorise (28x2 - 42)
7x(4x - 6)
8x + 3 = 6x + 11
x = 4
Calculate the value of x for a triangle that has sides of
x + 3, x + 4 and x + 5 and a total perimeter of 48cm.
x = 12
Determine the hourly rate and call out fee for the electrician below.
First Job he charges $140 for 2 hours
Second Job he charges $320 for 6 hours.
hourly rate = $45
Call out = $50
Expand 3(6x - 2) + 10(9x + 3)
108x +24
Factorise (24t2 + 18st - 21txz)
3t(8t + 6s - 7xz)
3(5x - 4) = 4(3x + 6)
x = 12
What is the difference between an expression and an equation?
Provide an example of each.
Expression has no equals sign, whilst an equation does equal a value.
Expression 3x + 4
Equation 3x + 4 = 10
Which landscaper is the better option for 5hours.
Option 1
C = 45h + 50
Option 2
C = 50h + 30
Option 1 by $5 at $275.