Question

Resolva as equações, sendo U=Q
a) x+4=-2

b) x+5=-1

c) x+3=2

d) x+7=3

Answer 1

a) x=-2-4
    x=6 

b) x=-1-5
    x=6

c) x=2-3
    x= -1

d)x=3-7
   x=-4