Question

X+[5+3x-(2x+1)]=18 porfavor con operación

Answer 1

OPERACIÓN

X+[5+3X-2X-1]=18
X+5+X-1=18
2X+4=18
2X=14
X=7

Answer 2

X+[5+3x-(2x+1)]=18 quito parentesis:
X+[5+3x-2x-1)]=18
X+[5+x-1)]=18
2x+4=18
2x=14 
x=7