Sumali sa IDNStudy.com at tuklasin ang komunidad ng pagbabahagi ng kaalaman. Hanapin ang mga solusyong kailangan mo nang mabilis at tiyak sa tulong ng aming mga bihasang miyembro.
Sagot :
3x + 2y = -17 2x - 5y = 14
3x+2y=-17
2y=-17-3x
y=(-17-3x)/2
2x-5y=14
2x-5[(-17-3x)/2]=14 ->substitute the value of y
2x+(85/2)+(15x/2)=14
2x+(15x/2)=14-(85/2)
(4x+15x)/2=(28-85)/2
use the cross product
19x/2=-57/2
-114=38x
-3=x
use the other equation which is
3x+2y=-17
substitute the value for x which is -3
3(-3)+2y=-17
2y=-17+9
2y=-8
y=-4
Final answer:
x=-3
y=-4
Then check if it is equal :D
:D :D
3x+2y=-17
2y=-17-3x
y=(-17-3x)/2
2x-5y=14
2x-5[(-17-3x)/2]=14 ->substitute the value of y
2x+(85/2)+(15x/2)=14
2x+(15x/2)=14-(85/2)
(4x+15x)/2=(28-85)/2
use the cross product
19x/2=-57/2
-114=38x
-3=x
use the other equation which is
3x+2y=-17
substitute the value for x which is -3
3(-3)+2y=-17
2y=-17+9
2y=-8
y=-4
Final answer:
x=-3
y=-4
Then check if it is equal :D
:D :D
for the first inequality
3x + 2y = -17
if x=0
3(0) + 2y = -17
2y=-17
2y/2 = -17/2
y= -8 1/2
if y=0
3x + 2(0) = -17
3x= -17
3x/3 = -17/3
x= -5 2/3
thats for the fist inequality.... and for the second, why dont you try to answer it..?? :) :) :)
3x + 2y = -17
if x=0
3(0) + 2y = -17
2y=-17
2y/2 = -17/2
y= -8 1/2
if y=0
3x + 2(0) = -17
3x= -17
3x/3 = -17/3
x= -5 2/3
thats for the fist inequality.... and for the second, why dont you try to answer it..?? :) :) :)
Maraming salamat sa iyong kontribusyon. Huwag kalimutang bumalik at magtanong ng mga bagong bagay. Ang iyong kaalaman ay napakahalaga sa ating komunidad. Bawat tanong ay may sagot sa IDNStudy.com. Salamat sa pagpili sa amin at sa muling pagkikita.