Determine which of the following matrix equations represents the solution to the system:
Determine which of the following matrix equations represents the solution to the system of equations:
1) (2x + y = 25)
2) (5x + 3y = 13).
7 Answers
2x+y=2
5x+3y=13
=>
|| 2 1 ||*|| x ||=|| 2 ||
|| 5 3 ||.|| y ||..||13||
=>
|| x ||=|| 3 -1||*|| 2 ||
|| y ||=||-5..2||.||13||
=>
|| x ||=||-7 ||
|| y ||..||16||
is the answer
2X+Y=2 >> 5X+3Y=13
*3
6X+3Y=6 >>>>6X+3Y=6
-5X-3Y=-13
X=-7
-42+3Y=6
3Y=48, Y=16
-14+16=2
-42+48=6
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