(2x-3)(х+7) = (x-4)(2x+3) + 3,
2х² + 14х - 3х - 21 = 2х² + 3х - 8х - 12 + 3,
14х - 3х - 3х + 8х = -12 + 3 + 21,
16х = 12,
х = 12/16,
х = 3/4 ( или х = 0,75 )
(2x-3)(х+7) = (x-4)(2x+3) + 3,
2х² + 14х - 3х - 21 = 2х² + 3х - 8х - 12 + 3,
14х - 3х - 3х + 8х = -12 + 3 + 21,
16х = 12,
х = 12/16,
х = 3/4 ( или х = 0,75 )