" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
no.1 C
no.2 C
no.3 A
caranya ad difoto y.. :)
5x+y=4
Metode eliminasi
×5|5x-10y=15
×1 |5x+y=4 dikurang (-)
-11y=11
Y=11÷-11=-1
Y=-1 x-2y=3
X-2(-1)=3
X+2=3
X=3-2=1 {1,-1}
2.)5x-3y=9
7x-6y=9
Metode eliminasi
×7|35x-21y=63
×5|35x-30y=45 dikurang (-)
9y=18
Y=18/9=2
Y=2 5x-3y=9
5x-3(2)=9
5x-6=9
5x=9+6
5x=15
X=15/5=3 {3,2}
3.)3x-y=11
2x+4y=-2
Metode eliminasi
×2|6x-2y=22
×3|6x+12y=-6 dikurang (-)
-14y=28
Y=28/-14=-2
Y=-2 3x-y=11
3x-(-2)=11
3x+2=11
3x=11-2
3x=9
X=9/3=3 {3,-2}