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7x = 35 - 7
7x = 28
x = 28/ :7
x = 4
b) 2-x = 5 - 2x
-x + 2x = 5 - 2
x = 3
c) 69 - x = x + 96
- x - x = 96-69
-2x = 27
x = 27 / : (-2)
x = - 13,5
d) 1/2x + 5 = x + 8
0,5x - x = 8 - 5
-0,5x = 3
x = - 6
e) 97 = 2x - 5
-2x = -5 -97
-2x = -102
x = 56
f) 43 = 7 + 9x
-9x = 7 - 43
-9x = -36
x = 4
g) 17 = 11 - 12x
12x = 11 - 17
12x = - 6
x = - 0,5
h) 3 2/3 = 1/2x - 1/3
-1/2x = -1/3 - 3 2/3
- 1/2x = -5
x = 10
7x= 35-7
7x=28
x=4
b) 2-x = 5 - 2x
-x +2x=-2+5
x=3
c. 69 - x = x + 96
-2x=96-69
-2x= 27
x=-13,5
D. 1/2x + 5 = x + 8
1/2x -x=8-5
-1/2x= 3
x = -6
E.97 = 2x - 5
97+5=2x
102=2x
x=56
f) 43 = 7 + 9x
43-7=9x
36=9x
x =4
g) 17 = 11 - 12x
17-11=-12x
6=-12x
x=-1/2
h) 3 2/3 = 1/2x - 1/3
3 2/3 +1/3=1.2x
4=1/2 x
x=8