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3 years ago

A) Solve by determinant method: x - y = 2, 2x + 3y = 4

Mathematics

1 answer:

grin007 [14]3 years ago

4 0

Answer:

x = 2

y = 0

Step-by-step explanation:

x - y = 2

2x + 3y = 4

Using creamers rule of determinants, we have;

D =

|1 1|

|2 3|

Thus; D = (1 × 3) - (1 × 2)

D = 1

Dx =

|2 1|

|4 3|

Dx = (2 × 3) - (1 × 4)

Dx = 2

Dy =

|1 2|

|2 4|

Dy = (1 × 4) - (2 × 2)

Dy = 0

Thus;

x = Dx/D = 2/1

x = 2

y = Dy/D = 0/1

y = 0

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A) Solve by determinant method: x - y = 2, 2x + 3y = 4​

A) Solve by determinant method: x - y = 2, 2x + 3y = 4