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Determine which method would be more efficient for solving each system of equations.

Determine which method would be more efficient for solving each system of equations-example-1
User Shabda
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Answer:

See attached worksheet

Explanation:

Deciding on "more efficient" involves judgement. The first set of equations is easily solved with substitution, since we already have the value of x (2). Just enter 2 for x in the second equation to find y. The rest have solutions that can be found after adding or subtracting one equation from the other, after multiply one by a factor that will result in the elimination of either the x or y after the equations are combined. Use the answer (for x or y) to find the other value (y or x)

Determine which method would be more efficient for solving each system of equations-example-1
User Clarise
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