Question

O resultado de 3 (x+1) \ 2 = 2 (x+4) \ 3 e:

A) 16\9

B) -7\5

C) 7\5

D) 1

E) 5\7

Answer 1

3 ( x + 1 ) / 2 = 2 ( x + 4 ) / 3

( 3x + 3 ) / 2 = ( 2x + 8 ) / 3

mmc(2,3) = 6

3 ( 3x + 3 ) = 2 ( 2x + 8 )

9x + 9 = 4x + 16

9x - 4x = 16 - 9

5x = 7

x = 7 / 5 = c)