Question

qual e a resposta dessa equacao
3/x+7=4/8​

Answer 1

Resposta:

Se realmente for 3/x+7=4/8​

3/x+7=1/2

3/x =1/2-7

3/x=1/2-14/2

3/x=-13/2

x=-6/13      

=>3/(-6/13) +7 =4/8

=>1/(-2/13) +7 =1/2

=> -13/2+7 =1/2

=> -13/2+14/2=1/2

=>1/2=1/2   OK!

Se for 3/(x+7)=4/8​

3/(x+7)=1/2

6=x+7

x=6-7

x=-1

3/(x+7)=4/8​

3/(-1+7) =4/8

3/6=4/8

1/2=1/2  OK!