Mayuran K. answered • 03/29/17
Tutor
4.8
(24)
Patient and effective UH grad for High school Math tutoring
Hy Tanya,
7x - 2y = 39
5x + 2y = 21
Add both the equations together
12x = 60
x = 5
substitute this value for x into equation 1
35 - 2y = 39
-2y = 4
y = -2
The ordered pair (5,-2) satisfies each system.
Tanya B.
03/29/17