Use Cramer‟s rule to solve the following: x+2y=3 3x+4y=1?

All_for_one

2 years ago

Here’s how to solve the system of equations using Cramer’s rule:
x+2y=3

3x+4y=1

Steps to solve:
1. Solve for x:
x+2y=3

x=3−2y

2. Substitute x into the second equation:
3(3−2y)+4y=1

9−6y+4y=1

−2y=−8

y=4

3. Substitute y back into the first equation:
x+2(4)=3

x+8=3

x=−5

Answer:
x=−5

y=4