edmentum Guided Notes TS Solving Three-Variable Linear Systems To solve a system of three linear equ ations, we will use the substitution method, following this process: 1. Isolate one of the in one of the equations. the expression that represents that variable into one of the other = Repeat this process, as needed, to find a possible solution for one of the variables. 4. Substitute the into the appropriate equations to find the values of the Solve the system of equations to find out how many _ Pienerets nickels, dimes, and quarters Aaron has. | n+ Ce = i n-d+q= | 0.05n + 0.1d + 0.25q = 3.25 | Solve for in the equation. Substitute into (22-d-q)-d+q=0 2d = 22 d=11 the equation and solve for : Substitute the value of back into the equation that we solved for ; 0.05n + 0.1d + 0.25q = 3.25 0.05(11 q) + 0.1(11) + 0.25q = owAN 1.65 + 0:2q = 3.25 q=8 Substitute the expression for __ and the value of ___,so we can solve for the value of __- Substitute the value of ___ and solve fOr oes Guided Notes: Systems of Linear Equations