Question

resolva as equações

a) x+5=8
b )x-4=3
c)x+6=5
d)x-7=-7
e) x+9=-1
f)x+28=11
g)x-109=5

Answer 1

X+5=8
X=8-5
X=3

X-4=3
X=3+4
X=7

X+6=5
X=5-6
X=-1

X-7=-7
X=-7+7
X=0

X+9=-1
X=-1-9
X=-10

X+28=11
X=11-28
X=-17

X-109=5
X=5+109
X=114