Question

Resolva as equações abaixo :
a) x -3=-7
b) x +9=-1
c)x+28=11
d) x-109=5
e) x -39=-79
f)10=x+9​

Answer 1

Resposta:

a) x -3=-7

x= -7+3

x= -4

b) x +9=-1

x= -1-9

x= -10

c)x+28=11

x= 11-28

x= -107

d) x-109=5

x= 5+109

x=114

e) x -39=-79

x= -79+39

x= -40

f)10=x+9

10-9= x

x= x