Question

3 1-7x
_ =25 é:
5 9

Quem nao entender deixa o zap

Answer 1

Boa tarde

(3/5)*(1 - 7x)/9 = 25

3*(1 - 7x)/45 = 25
(1 - 7x)/15 = 25
1 - 7x = 15*25 
1 - 7x = 375
-7x = 375 - 1 = 374 

x = -374/7 

Answer 2

 Oi! :)


( 3 / 5 ) * ( 1 - 7 x ) / 9 = 25

3 * ( 1 - 7 x ) / 45 = 25

( 1 - 7 x ) / 15 = 25

1 - 7 x = 15 * 25 

1 - 7 x = 375

- 7 x = 375 - 1 = 374 

x = - 374 / 7 


 Tchau! :)