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6x+5y=8 |x1
20x-5y=5
6x+5y=8
_____________+
26x=13
x=13/26
x=1/2
x=0.5
4x-y=1
4.0,5-y=1
2-y=1
-y=1-2
-y=-1
y=1
2x+y
=2x0,5+1
=1+1
=2
4x - y =1 [6] 24x - 6y = 6
6x +5y=8 [4] 24x +20y=32
-------------------- -
-26y = -26
y= 1
substutusi:
4x - y = 1
4x - 1 = 1
4x = 1 + 1
4x = 2
x = 2 / 4
= 0,5
2x + y =
2 (0,5)+ 1 =
1 + 1 = 2