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Zigmanuir [339]
3 years ago
5

-2x + 6y=4 5x + y = 6 using cramers rule

Mathematics
1 answer:
Deffense [45]3 years ago
7 0

Answer:

The answer to your question is x = 1   y = 1

Step-by-step explanation:

Data

      -2x + 6y = 4           Equation l

       5x + y = 6              Equation ll

Process

1.- Calculate Δ

Δ  =    | -2   6 |

          | 5    1 |  = (-2 x 1) - (5 x 6)

                       = -2 - 30

                       = - 32

2.- Calculate Δx

Δx =  | 4   6 |

        | 6    1 |   = (4 x 1) - (6 x 6)

                      = 4 - 36

                      = -32

3.- Calculate Δy

Δy = |  -2  4 |

       |  5   6  |  = (-2 x 6) - (5 x 4)

                      = -12 -20

                      = -32

4.- Find x and y

x = Δx/Δ = -32/-32 = 1

y = Δy/Δ = -32/-32 = 1

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Step-by-step explanation:

To find out if (4,10) is a solution to the system, we plug in the values of x and y into each equation.

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