Question

resolva as equações
a) ×+2=8
b)x+1=9
c)×+7=15
d)×-3=1
e)×-4=20
f)×-10=7
g)×+5=12
h)×-18=16

Answer 1

Ok, vamos lá!

A)
x+2=8
x=8-2
x=6

B)
x+1=9
x=9-1
x=8

C)
x+7=15
x=15-7
x=8

D)
x-3=1
x=1+3
x=4

E)
x-4=20
x=20+4
x=24

F)
x-10=7
x=7+10
x=17

G)
x+5=12
x=12-5
x=7

H)
x-18=16
x=16+18
x=34

Espero ter ajudado.