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

7-50.

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

a.

*y*− 3*x*= −2

4*x*+ 2*y*= 6b.

*x*=*y*− 4

*2x*−*y*= −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.