Question

4x+3y+5z= 42 3x+4y+3z= 33 2x+5y+2z= 29

Answer 1

4x+3y+5z

4x=42-3y-5z

x=21÷2-3÷4y-5÷4z

x=21÷2-3÷4y-5÷4z,y€r,z€r

3x+4y+3z

3x=33-4y-32

x=11-4÷3y-z

x=114÷3y-z,y€r,€r