Notes Solving a System by Elimination

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Presentation transcript:

Notes Solving a System by Elimination 1. Arrange the like variables in columns. - This is already done. 2. Pick a variable, x or y, and make the two equations opposites using multiplication. 3. Add the equations together (eliminating a variable) and solve for the remaining variable. 4. Substitute the answer into one of the ORIGINAL equations and solve. 5. Check your solution.

Notes Solve the system by elimination. 1) Arrange the variables. Ex. 2) Make opposites. 3) Add and solve for the variable. 4) Substitute into ANY original equation. 5) Check your answer.

Notes Solve the system by elimination. 1) Arrange the variables. Ex. 2) Make opposites. Check 3) Add and solve for the variable. 4) Substitute into ANY original equation. 5) Check your answer.

Notes 1) Arrange the variables. Solve the system by elimination. Ex. Now you try. Solve the system by elimination. 1) Arrange the variables. Ex. 2) Make opposites. 3) Add and solve for the variable. 4) Substitute into ANY original equation. 5) Check your answer.

Notes Solve the system by elimination. 1) Arrange the variables. Ex. 2) Make opposites. Check 3) Add and solve for the variable. 4) Substitute into ANY original equation. 5) Check your answer.

Notes Solve the system by elimination. 1) Arrange the variables. Ex. Now you try. Solve the system by elimination. 1) Arrange the variables. Ex. 2) Make opposites. 3) Add and solve for the variable. 4) Substitute into ANY original equation. 5) Check your answer.

Notes Solve the system by elimination. 1) Arrange the variables. Ex. 2) Make opposites. Check 3) Add and solve for the variable. 4) Substitute into ANY original equation. 5) Check your answer.

Notes Solve the system by elimination. 1) Arrange the variables. Ex. 2) Make opposites. 3) Add and solve for the variable. 4) Substitute into ANY original equation. 5) Check your answer.

Notes 1) Arrange the variables. Solve the system by elimination. Ex. Now you try. 1) Arrange the variables. Solve the system by elimination. Ex. 2) Make opposites. 3) Add and solve for the variable. 4) Substitute into ANY original equation. 5) Check your answer.

Class Work Solve the system by elimination.