Question

3x+4y=7 आणी2x+3y=5 या समीकरणासाठी D ची किंमत किती?​

Answer 1

Answer:

3x+4y=7---i

2x+3y=5---ii

3x=7-4y

x=7-4y/3

put value of x in eq.ii

=2(7-4y/3)+3y=5

=14-8y/3+3y=5

=14-8y/3 + 9y/3=5

=14+y/3=5

=14+y=15

=y=1

THEREFORE,3x+4=7

3x=3

x=1