( 4x + 3) - ( 10x+11)=7+ (13-4x)
(4х +3) - (10х + 11)=7+(13 - 4х) 4х +3 - 10х -11 = 7 + 13 - 4х -6х + 4х=7+13+11-3 -2х=18 х=-9