x+2y=-1,2x-3y=12 cramers rule
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simultaneous eqn
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x+2y+1=0
2x-3y-12=0
Cramer's rule
x/-24+3=-y/-12-2=1/-3-4
x/-21=1/-7
x=-21/-7=3,y=14/-7=2
x=3,y=-2
2x-3y-12=0
Cramer's rule
x/-24+3=-y/-12-2=1/-3-4
x/-21=1/-7
x=-21/-7=3,y=14/-7=2
x=3,y=-2
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