Question

resolver pela regra de cramer
S1= {x-2y=3
       {2x-3y=4

Answer 1

x - 2y = 3
2x - 3y = 4
==========

D
| 1. -2|
| 2 -3|

-3 + 4 = 1


Dx
| 3 -2|
| 4 -3|

-9 + 8 = -1


Dy
| 1 .3|
| 2 4|

4 - 6 = -2


X = Dx/D

X = -1/1
X = -1


Y = Dy/D

Y = -2/1
Y = -2

s={ -1, -2 }


☆Espero ter ajudado!