Question

a) X + 4/15=2/3

b) X + 4/3=X + 3/4

Answer 1

A) X + 4  = 2
          15    3

15x + 4 = 10 ==. 15x = 10-4 ==> 15x= 6 ==> x = 6/15
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b) X + 4 = X + 3
          3           4

12x+ 16 = 12x + 9

12x-12x = 9 - 16

0x = - 16

x = - 16 indeterminado
         0