Question

Me ajudem !
a) x/3+4=2x
b)x/2+4=1/3
c)x-1=5-x/4
d)x/6+x/3=18-x/4

Answer 1

acho que é assim que se faz
a)x/3+4=2x
x+12=6x
x-6x=-12
-5x=12 . (-1)
5x=12
x=12/5
x=2,4

b)x/2+4=1/3
3x+24=2
3x=2-24
3x=-22
x=-22/3
x=7,33

c)x-1=5-x/4
4x-4=20-x
4x+x=20+4
5x=24
x=24/5
x=4,8

d)x/6+x/3=18-x/4
2x+4x=216-3x
2x+4x+3x=216
9x=216
x=24