Ivan Kochetkov, Electrochemistry at University of Waterlooo, Numerade Educator

02:36

Precalculus with Limits

Solving a System by Substitution In Exercises
$7-14,$ solve the system by the method of substitution.
Check your solution(s) graphically.
$$\left\{\begin{array}{rr}{x-4 y} & {=-11} \\ {x+3 y} & {=\quad 3}\end{array}\right.$$

Chapter 7: Systems of Equations and Inequalities

Section 1: Linear and Nonlinear Systems of Equations