Post a New Question

substitution method

posted by on .

solve using the substitution method

8x+6y=8
-9x+y=22


The solution is (___,___)

  • substitution method - ,

    1.8X + 6Y = 8
    2. -9X + Y = 22

    Using Eq. 2, solve for y.
    Y = 9X + 22
    Substitute 9X + 22 for y in Eq 1:
    8X +6(9X + 22) = 8.
    Solve for X:
    8X + 54X + 132 = 8
    X = -2.
    In Eq. 2,substitute -2 for X and
    solve for Y:
    -9(-2) + Y = 22, Y = 4

    Solution: X = -2, and Y = 4.

  • substitution method - ,

    thank you Henry!!!!

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question