persamaan sistem metode subsitusi. {y=x+2 {y+x=12 {x=3y {y+2x=21
Matematika
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Pertanyaan
persamaan sistem metode subsitusi.
{y=x+2
{y+x=12
{x=3y
{y+2x=21
{y=x+2
{y+x=12
{x=3y
{y+2x=21
1 Jawaban
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1. Jawaban AAV1117
Y+X=12
X+2+X=12
2X=10
X=5
Y=X+5
Y=5+2
Y=7
Y+2X=21
Y+2(3Y)=21
Y+6Y=21
7Y=21
Y=3
X=3Y
X=3*3
X=9