Question

am nevoie neaparat rezolvarea acestora:
a) 3×-10=-25
b) -105=×+25
c) 5(×-4)-81=-106
d) 5(2-×)+92=17
e) 8-2(4-×)=-18
f) 40-3(1-×)=-14
g) |3×-1
|=10
h)
|10×+15=35

Answer 1

3x=-15
x=-5

 x=-105-25
x=80

5x-20-81=-106
5x=106-81+20
5x=25+20
5x=45
x=9

8-8-2x=-18
2x=18-8+8
2x=18
x=9

40-3-3x=-14
3x=40-3-3+(-14)
3x=34+(-14)
3x=-48
x=16