Question

Ecuación 9x-(5x+1)-{2+8x-(7x-5)}+9x=0

Answer 1

9x-5x-1-(2+8x-7x+5)+9x=0

9x-5x-1-(7+x)+9x=0

9x-5x-1-7-x+9x=0

12x-8=0

12x=8

x=8/12

x=2/3

Saludos espero que te sirva :)

Answer 2

9x-5x-1-{2+8x-7x+5}+9x=0

9x-5x-1-2-8x+7x-5+9x=0

9x-5x-8x+7x+9x=5+2+1

12x=8

x=8/12

x=2/3