Warm-Up
This rectangle has a perimeter of 34 inches.
The length is one more than three times the
width. Find the dimensions of the rectangle.
L
Solve Systems by Graphing
Graphing Systems on CAS
Solve Systems with Substitution
Solve Systems with Elimination
Elimination w/ Multiplying 1 Eq.
1–2
3–4
5–6
7–8
9–10
w
AAAH! Nothing will
cancel out?!?!?!
What do we do? .....
Warm-Up
This rectangle has a perimeter of 34 inches.
The length is one more than three times the
width. Find the dimensions of the rectangle.
L
MULTIPLY
DIVIDE
w
2
1
2x + 5y = 3
3x + 10y = -3
11x - 20y = 28
3x = 36 - 4y
3
-2x - 5y = 9
11y + 6x = 5
4
You are purchasing satin and felt from
the fabric store. You spend $81 on 20
yards of fabric. The satin fabric costs
$6 per yard and the felt costs $3 per
yard. How much satin and how much
felt did you purchase?