November 2018 1 79 Report
Sistem persamaan lianer x+y=4 dan 4x+3y=13
jwb:
persamaan (1) x+y=4
x=4-...
subtitusikan x=4 -... ke persamaan (2)
4x+3y=13
<=> 4(4-...) + ...y =13
<=>16-... +...y=13
...y=13-...
...y=...
y=...
kemudian subtutusikan y= ... kepersamaan (2)
x+y=4
x+...=4
x=4-...
x=...
maka hp {(..., ...)}
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