Bagaimana cara mengerjakan soal aljabar dari 2x+5y=3x+8y
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ax+by=c
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2x+5y=3x+8y <nilai 2 linear sebanding
2x+5y=c
3x+8y=c
.
2x+5y=c |x3| 6x+15y=3c
3x+8y=c |x2| 6x+16y=2x
---------------- -
-y=c(1)
y=-1
2x+5y=c
2x+5y=3x+8y
2x+5(-1)=3x+8(-1)
2x-5=3x-8
2x-3x=-8+5
-x=-3
x=3
.
x=3
y=-1
pembuktian~~
2x+5y=3x+8y
2(3)+5(-1)=3(3)+8(-1)
6-5=9-8
1=1
[answer.2.content]
