Texas Instruments MathPrint TI-30X Pro - Page 62

58 Math Tools
Example 2×2 System
Solve:
+ =
1
3
2
3
37
90
x y
− =
2
5
1
5
28
75
x y
Sys-solv % 
2×2
system
<
Enter
equations
1 P 3 < <
2 P 3 <
37 P 90 <
2 P 5 <
U 1 P 5 <
28 P 75 <
Solution
<
Change
number
format (if
needed)
r
<
Change
number
format (if
needed)
r
<
Example 3×3 System
Solve: 5x – 2y + 3z = -9