Substitution method - Free math help
www.mathportal.org › substitution-methodThe main idea here is that we solve one of the equations for one of the unknowns, and then substitute the result into the other equation. Substitution method can be applied in four steps. 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: