Question

3x-5y-4=0and 9x=2x+7

Answer 1

this question is incomplete

Answer 2

answer 2):-
$9x = 2x + 7$
$9x - 2x = 7$
$7x = 7$
$x = \frac{7}{7}$
$x = 1$
answer2):- is incomplete question