Question

INS
1) Resolva as seguintes
equações:
a) x + 5 = 8
b) X-4 = 3
c) x + 6 = 5
d) X-7=-7
e) X + 9 = -1
f) 10 = x + 8
g) 7 = x + 8
h) 15 = x + 20
i) - 3 = x + 10
Docohra as seguintes​

Answer 1

Resposta:

a) x+5=8

x=8-5

x=3

b)x-4=3

x=3+4

x=7

c)x+6=5

x=5-6

x=-1

D)x-7=-7

x=-7+7

x=0

e)x+9=-1

x=-1-9

x=-10

f)10=x+8

10-8=x

2=x

g)7=x+8

-8+7=x

-1=x

h)15=x+20

x=15-20

x=-5

i)-3=x+10

x=-3-10

x=-13