Odpowiedź :
2x-5=14
2x = 14+5
2x = 19
2x = 9,5
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7-x=28+x
-x-x = 28-7
-2x = 21
x = -10,5
------------
12x-24=x:2
24x-48 = x
24x-x = 48
23x = 48
x = 48/23
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2x+y-5=y-34x
2x+34x + y - y = 5
36x = 5
x = 5/36
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2x-5=14
2x = 14+5
2x = 19
2x = 9,5
------------
7-x=28+x
-x-x = 28-7
-2x = 21
x = -10,5
------------
12x-24=x:2
24x-48 = x
24x-x = 48
23x = 48
x = 48/23
------------
2x+y-5=y-34x
2x+34x + y - y = 5
36x = 5
x = 5/36
------------