1) Resolva as seguintes equações
a) x + 5 = 8 (R = 3)
b) x - 4 = 3 (R = 7)
c) x + 6 = 5 (R= -1)
d) x-3= - 7 (R= -4)
e) x + 9 = -1 (R=-10)
f) x + 28 = 11 (R=-17)
g) x - 109 = 5 (R= 114)
h) x - 39 = -79 (R=-40)
i) 10 = x + 9 (R=2)
j) 15 = x + 20 (R=-5)
l) 4 = x - 10 ( R= 14)
m) 7 = x + 8 (R= -1)
n) 0 = x + 12 (R= -12)
o) -3 = x + 10 (R= -13)​