Question

X/4+x/3=x-100
Me ajudem!!

Answer 1

3+4 / 12 x= x -100
7 / 12 x - x = 100
7-12*1/12x= -100
-5/12x= -100
x= -100:(-5/12)
x= -100*(-12/5)
x= -20*-12
x=240