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2x-y-3=0 (2)
dari pers (1)
x+4y-6=0
x=6-4y (3)
subs pers (3) ke pers (2)
2x-y-3=0
2(6-4y)-y-3=0
12-8y-y-3=0
12-7y-3=0
-7y-3=0-12
-10y=-12
y= -12: -10
y= 1,2
subs y= 1,2 ke (3)
x=6-4y
=6-4(1,2)
=6-4,8
x= 1,2 hp{(1,2),(1,2)}
x-y-2=0 (1)
x-2y-10=0 (2)
dari pers (1)
x-y-2=0
x=2-y (3)
subs pers (3)ke pers (2)
x-2y-10=0
6-4y-2y-10=0
6-6y=0-10
y= -10
subs y= -10 ke (3)
x=2-y
=2-(-10)
x=12 hp{12,-10}
x-y=5 (1)
2x+5= -4 (2)
dari pers (1)
x-y=5
x=5-y (3)
subs pers (3) ke pers (2)
2x + 5 = -4
2(5-y)+5= -4
10-2y+5= -4
-2y+5= -4-10
3y= -14
y = -14 : 3
y= -4,7
subs y= -4,7 ke pers (3)
x=5-y
x=5-(-4,7)
x= 9,7 hp{(9,7),(-4,7)}
x-2y=6 (1)
2x-y=9 (2)
dari pers (1)
x-2y=6
x=6-2y (3)
subs pers(3) ke pers (2)
2x-y=9
2(6-2y)- =9
12-4y-y=9
-5y=9-12
-5y= -3
y= -5: -3
y= 1,2
subs y= 1,2 ke (3)
x=6-2y
x=6-2(1,2)
=6-2,4
x=1,2 hp{(1,2),(1,2)}
semoga salah semua aminn :'''v