Step 1: Solve one of the equations for either x = or y = . Step 2: Substitute the solution from step 1 into the other equation. Step 3: Solve this new equation. Step 4: Solve for the second variable.
Example 1: Solve the following system by substitution Substitution Method Example Solution: Step 1: Solve one of the equations for either x = or y = . We will solve second equation for y. solution step 1 Step 2: Substitute the solution from step 1 into the second equation. solution step 2 Step 3: Solve this new equation. solution step 3 Step 4: Solve for the second variable solution step 4 The solution is: (x, y) = (10, -5) Hope this helps!
