Question

$3x + 2y = 11 \\ 2x + 3y = 12$what would be the answer of this simultaneous equation through cramers rule and through simultaneous Equations ​

Answer 1

Step-by-step explanation:

by cramers rule:

a=|3 2|. ax=|11 2|. ay=|3 11|

|2 3|. |12 3|. |2 12|

|a|= 5. |ax|=9. |ay|=14

x=|ax|/|a|

x=9/5

y=|ay|/|a|

y=14/5

solving by simultaneous equations:

3x+2y=11------×2

6x+4y=22------(1)

2x+3y=12----------×3

6x+9y=36------(2)

subtract equation 1 from 2

5y=14

or, y=14/5

putting value of y in equation 2x+3y=12

2x+42/5=12

2x=12-42/5

2x=18/5

x=9/5