Linear equations

• Wiskunde
• Middelbare school
• havo
• Leerjaar 2

Linear equations

• Variables
• Formulas
• Equations

Variables

Formulas

Expand the brackets

y=2(x+4)

Solve the equation

2x+8=14

What is the first step of solving an equation?

1. Rearrange by adding/subtracting
2. Rearrange by multiplying/dividing

Rearrange the equations

2x + 5 = -x - 4

3x + 5 = -4

3x + 5 = -4

3x = -9 

3x = -9

x = -3

Inequalities

• Greater than --> > 
• Less than ---> <
• Solve it like an equality
•  

k:y=12x+8

l:y=25−5x

Upload a picture of your inequality including the steps and the solution

Exercises (+ homework 17-3-22)

• Do exercises 21 utai 24, p. 145