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Home > CC4 > Chapter 7 > Lesson 7.1.4 > Problem 7-50

7-50.
  1. Solve the following systems of equations algebraically and then confirm your solutions by graphing. Homework Help ✎

  2. a.

    y − 3x = −2
    4x + 2y = 6

    b.

    x = y − 4
    2xy = −5

Read the Math Notes box in Lesson 6.2.3 on the Substitution Method.

(1,1)

Substitute x = y − 4 in the second equation.