Question

3x+4y-8=0;x-2y-5=0 by Cramer's rule ​

Answer 1

Step-by-step explanation:

D=(3. 4)=-6-4=-10

1. -2

Dx=(8. 4)=-16-20=-36

5. -2

Dy=(3. 8)=15-8=6

1. 5

X=-6

y=5

Answer 2

Answer:

ok but you follow me please

Step-by-step explanation:

3x+4y-8=0

x-2y-5=0×by 3=3x-2y-5 =0

lets use cramers formula

3x+4y-8=0

3x-2y-5=0

__________

2y-13=0

y=13/2=6.5

so value of y is 6.5

let we find the value of x

put y=6.5 in eq ( 2) x-2y-5=0

x-2(6.5)-5=0

x-13-5=0

x-18=0

x=18

value of x=18 andy=6.5