Ответ:
1) -(-х+2)+3=-1
x -2 + 3 = -1
x + 1 = -1
x = -1 -1
x = -2
2) 6+(х-3)=-2
6 + x - 3 = -2
3 + x = -2
x = -2 -3
x = -5
3) -6-(2-х)=-1
-6 - 2 + x = -1
-8 + x = -1
x = -1 + 8
x = 7
1. 5+96=101
2.101*2=202
3.202*2=404
4.404+2=406
Пошаговое объяснение:
1) 5*90=450