Question

What is the value of D , for solving the simultaneous equations 3x+2y=11 and 7x-4y=9 by Cramers rule
​

Answer 1

Answer:

3x+2y=11=>×2

7x-4y=9

6x+4y=22

-4y+4y get cancel

13x=31

x=31/13

3(31/13) +2y=11

2y=11-93/13

2y=143-93/13

2y=50/13

y=25/13

Answer 2

Answer:

$4.1 { {5.15 \sqrt{ \sqrt[ { \frac{ \sqrt{ |11 \div 2. \\ \times \beta \beta \cot( {85 - x { - \times {}^{?} }^{2} }^{?} ) | } }{?} }^{2} ]{?} } }^{2} }^{2}$