5.3 ELIMINATION WITH MULTPLYING ONE EQUATION
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
w
1
2
2x + 5y = 3
11x – 20y = 28
3x + 10y = –3
3x = 36 – 4y
DIVIDE
5.3 ELIMINATION WITH MULTPLYING ONE EQUATION
4
3
–2x – 5y = 9
6x – 5 = –11y
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?