Question

2+4a-15=-13a+4 me ayudan

Answer 1

2+4a-15= -13a+4
4a+13a= 4+15-2
  17a= 19-2
   17a= 17
      a= 17/17
      a= 1

Answer 2

2 + 4a - 15 = - 13a + 4

4a - 13 = - 13a + 4

4a  13a = 4 + 13

17a = 17

a = 17/17

a = 1

Solución : 

a = 1