12 x= -x +121 gente qual é a resposta ???
12x = -x + 121
13x = 121
x = 121/13
x= 9.3076....
12x + x= 121
x= 9,307692307692308...
12x+x=121
13x=121
x=121/13
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Verified answer
12x = -x + 121
13x = 121
x = 121/13
x= 9.3076....
12x = -x + 121
12x + x= 121
13x = 121
x = 121/13
x= 9,307692307692308...
12x+x=121
13x=121
x=121/13