Question

3x - 473 y =13 answer please frinend​

Answer 1

9x-4y/3=13

9x-4y= 39.....1

56x-13y/14=126

56x-13y=1764.....2

by using cramer's rule

D=(9×-13)-(56×-4)

D=(-117)-(-224)

D=-117+224

D=107

Dx=(39×-13)-(-4×1764)

Dx=(-507)-(-7056)

Dx=-507+7057

Dx=6549

Dy=(9×1764)-(56×39)

Dy=(15876-2184)

Dy=13692

x=Dx/D=6549/107=61

y=Dy/D=13692/107=127.9~128