Question

решите уравнение х - (-1)-3=-4

Answer 1

x - (-1) - 3 = - 4 
x + 1 - 3 = - 4
x - 2 = - 4
x = - 4 + 2
x = - 2 

Answer 2

х+1-3=-4
х+1=-4+3
х+1=-1
х=-1-1 =-1+(-1)=-2