Solving systems of linear equations with elimination 1

The  exercise appears under the 8th Grade Math Mission. This exercise has practice with solving systems of equations that are begging for elimination.

Types of Problems
There is one type of problem in this exercise:


 * 1) Solve system with elimination: This problem presents two equations with one variable already lined up for elimination. The student is expected to use elimination and solve the system. The answer is provided as an x and a y-coordinate.Soewse1.png

Strategies
Knowledge of the elimination method of solving equations will help to perform this exercise accurately and efficiently.
 * 1) To solve by elimination, add (or subtract) the equations from each other to find the solutions.
 * 2) These problems are set up and ready to solve. No extra manipulation should be necessary in general.

Real-life applications

 * 1) Applications include supply and demand lines form business and various other situations where there is information gained from different resources.