Olá!
Vamos resolver as equações no papel(veja a figura).
a) 2x/7-x/14=1/2
4x-x=7
3x=7
x=7/3
b) 4-x/8+1=11/16-x/4
64-2x+16=11-4x
-2x+4x=11-64-16
2x= -69
x=- 34,5 ou -69/2
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Answers & Comments
Olá!
Vamos resolver as equações no papel(veja a figura).
a) 2x/7-x/14=1/2
4x-x=7
3x=7
x=7/3
b) 4-x/8+1=11/16-x/4
64-2x+16=11-4x
-2x+4x=11-64-16
2x= -69
x=- 34,5 ou -69/2