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jeruk=y
3x+4y=81000 |x3|9x+12y=243000
2x+6y=104000|x2|4x+12y=208000
5x=35000
x=7000
3x+4y=81000
3.7000+4y=81000
21000+4y=81000
4y=81000-21000
4y=60000
y=60000:4
y=15000
5x+5y=5.7000+5.15000
=35000+75000
= Rp 110.000,00
3x+4y= 81000. | x2.
2x+6y= 104000. | x3
= 6x+8y = 162000
6x+18y = 312000
________________-
= -10y = -150000
y= -150000/ -10
y= 15000
x=
3x+4y= 81000 | x6
2x+6y=104000. | x4
18x+ 24y= 486000
8x+ 24y= 416000
________________-
10x = 70000
x= 7000
5x+ 5y=
=5(7000)+5(15000)
=35000+75000
=110000
maaf yg tadi ada yg salah