Simultaneous Equations

Simultaneous Equations -the basics

Open Ended

What value of x and y work for

5x + y = 17

Open Ended

What are the solutions to

5x + y = 17 &

3x + y = 11

How can you solve?

5x-y=17

2x+y=11

How can you solve?

3x-4y=20

6x-4y=32

General rule:

When coefficients are the same and

Signs the same then -

Signs different then +

If the coefficients are the same and the sign is the