Post a New Question

substitution

posted by .

solve by the substitution method

3x+5y=21
x=51-9y

  • substitution -

    substitute x in the eq 3x+5y=21
    3(51-9y)+5y=21
    153-27y+5y=21
    153-22y=21
    -22y=21-153
    -22y=-132
    -22y/-22=-153/-22
    y=6

Answer This Question

First Name
School Subject
Your Answer

Related Questions

More Related Questions

Post a New Question