Question

4. what is the value of D. for solving
simultaneous equation x + y = 3; 3x - 2y - 4
= 0 by determinant method​

Answer 1

Answer:

$x + y = 3 \\ 3x - 2y - 4 = 0 \\ \\ x + y = 3 \\ x = 3 - y \\ x \: ka \: man \: doosre \:me \: rkhne \: pr \\ 3x - 2y - 4 = 0 \\ 3 (3 - y) - 2y - 4 = 0 \\ \\ 9 - 3y - 2y - 4 = 0 \\ 9 - 5y - 4 = 0 \\ 9 - 5y = 4 \\ - 5y = 4 - 9 \\ - 5y = - 5 \\ y = \\ \frac{ - 5}{5} \\ y = - 1 \\ now \: y \: ka \: man \: pahle \: me \: rkhne \: pr \\ x + y = 3 \\ x + ( - 1) = 0 \\ x = 1 \\ it \: is \: the \: right \: answer \\ \\ plz \: give \: me \: brainlist$