(7х+1)(х-3)+3=5хрешите пж

Question

(7х+1)(х-3)+3=5х
решите пж

Answer 1

( 7x + 1 )( x - 3 ) + 3 = 5x 
7x^2 - 21x + x - 3 + 3 = 5x 
7x^2 - 20x - 5x = 0 
7x^2 - 25x = 0 
x( 7x - 25 ) = 0
x = 0 
7x - 25 = 0 
x = 25/7 = 3 4/7 
Ответ 0 ; 3 4/7