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4x+6y=15 -
-4y=-10
y = 10
-4
y = -2,5
4x+2y=5 | x3| 12x+6y=15
4x+6y=15 |x1| 4x+6y= 15 -
8x= 0
x= 0/8
x= 0
4x + 2y = 5.
4x + 6y = 15
-------------------- ---
- 3y = - 10
y = - 10 + 3
y = - 7
eliminasi y
4x + 2y = 5 | di kali 3 semua angka
4x + 6y = 15 | di kali 1 semua angka
terus dapat
12x + 6y = 15
4x + 6y = 15
----------------------- ---
8x. = 0
x. = - 8 + 0
= - 8