Question

15(x-1)+4(x+3) = 2(7+x)
RESOLVER LAS SIGUIENTES ECUACIONES?

Answer 1

15x-15+4x+12=14+2x       
15x+4x-2x=14+15-12
17x=17
x=1 :VVVVVVVVVVVVVVVVVVV

Answer 2

15(x-1)+4(x+3) = 2(7+x)

15x-15+4x+12 = 14+2x

19x -3 =  14+ 2x

19x-2x = 14 + 3

17x = 17

x = 17/17

x = 1