Question

Me ajudem urgente!!!!

Answer 1

i)
5=(a+2)/3
a+2=3.5
a+2=15
a=15-2
a=13

j)
2e/3+1=e+2  m.m.c.=3
2e+3=3e+6
2e-3e=6-3
-e=3
e=-3

k)
(m-7)/5=m-3
m-7=5(m-3)
m-7=5m-15
m-5m=-15+7
-4m=-8
m=-8/-4
m=2

l)
(2x-3)/4=x+1
2x-3=4(x+1)
2x-3=4x+4
2x-4x=4+3
-2x=7
x=7/-2
x=-7/2
ou
x=-3,5