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3x - 2y= -16 (x2)
6x+9y=33
6x-4y=-32 -
13y=65
y=65/13
y=5
2x+3y=11
2x+3(5)=11
2x+15=11
2x =11-15
2x =-4
x =-4/2
x =-2
jadi,-3a+2b=-3x+2y
=-3(-2)+2(-2)
=6+ -4
=2
3x - 2y= -16 (x2)
6x+9y=33
6x-4y=-32 -
13y=65
y=65/13
y=5
2x+3y=11
2x+3(5)=11
2x+15=11
2x =11-15
2x =-4
x =-4/2
x =-2
jadi,-3a+2b=-3x+2y
=-3(-2)+2(-2)
=6+ -4
=2