Question

Solve equation by the cramer's rule 3x+4y-7=0,y-2x=3

Answer 1

Answer:3x+4y-7=0.......1

y-2x=3........2

In 2

y=3+2x

Putting it in 1

3x+4y-7=0

3x+4(3+2x)=7

3x+12+8x=7

11x=-5

×=-5/11

y=3+2×

Putting value of x

y=3+2×-5/11

3-10/11

33-10/11=23/11

y=23/11

Step-by-step explanation:

Answer 2

by cramers law.
the above is the solution of your question.
First you have to find the value of discriminant
and then the value of Dx and Dy and then substitute the values in the formula x=Dx/D
and y=Dy/D.