Two-Step Equations
6x – 13 = 11
x= 4
x - 2 = 6
x = 8
What is the 4 Basic Operations?
Add, Subtract, Multiply and Divide
Four less than five times a number is equal to 11
5n - 4 = 11
3x + 5 = 14
x= 3
-5p + 1 = 6
p = -1
In order to solve an equation you need to cancel out numbers, how do you do that?
The inverse or opposite
Eight more than four times a number is negative twelve
4n + 8 = -12
x/2 + 13 =-8
x= -42
2n+10 = 4
n = -3
What is the letter called in an equation?
The variable
The product of a number and four increased by sixteen is equal to negative 2
4n + 16 = -2
x/2 + 5 =10
x= 10
-3 - 6x = 9
x = -2
When solving an equation what procedure do you do in reverse?
Order of Operations or PEMDAS
Twenty-two less than three times a number is -70
3n - 22 = -70
x/3 - 6 = -3
x= 9
16 = 5x - 9
x = 5
What do you call it when you match what you do to one side of the equation to the other while cancelling out numbers?
Balancing the equation
Six increased by the product of a number and nine is 456
6 + 9n = 456