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x + 7 = 10
3 * ( 5x + 2 ) = 17
- x - 5 = x +4
(x-2) - ( x-7 ) = 5
6 * (1-x) = 2 * (2+3x)
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x + 7 = 10
x= 10-7
x= 3
3 * ( 5x + 2 ) = 17
15x +6 = 17
15x = 17-6
15x = 11 /:15
x= 0,7(3)
- x - 5 = x +4
-x -x = 4+5
-2x= 9 /: (-2)
x= -4,5
(x-2) - ( x-7 ) = 5
x-2 -x+7 = 5
x-x = 5+2 -7
0=0
6 * (1-x) = 2 * (2+3x)
6 -6x = 4 +6x
-6x -6x= 4-6
-12x= -2 /: (-12)
x= 1/6
a)x=3
b)15x+6=17
15x=11
x=11/15
c)2x=-9
x=-4,5
d)x-2-x+7=5
5=5
e)6-6x=4+6x
12x=2
x=1/6