Example 2, solve the following simultaneous equations by using the substitution method: Solution: Label the equations as follows: So, the solution is (6, 9). Note: It is convenient to use the substitution method when one of the given equations has one of the variables as its subject. Year 10 Interactive Maths - Second Edition, the Algebraic Methods, use of algebra enables us to obtain exact answers to simultaneous equations. There are two algebraic methods, the Substitution. Method and the Elimination Method. - Responsive Customer Support: Contact us day or night by phone, email, or live chat and be able to receive quick response from a friendly and trained representative 24 hours a day, 7 days a week.
And then theres what Getschow laughingly dubbed the garbage queens, Rose George, author of. The Big Necessity: The Unmentionable World of Human Waste and Why It Matters, and Elizabeth Royte, author of, garbage Land: On the Secret Trail of Trash.