Question

indique a soluçao de cada uma das equaçao

a)×+1=9
b)x-2=8
c)x-8=-10
d)x+3=3
e)x+101=300
f)x-279=237
g)17+x=13
h)128+x=900

Answer 1

a) x =9-1
x= 8

b) x =8 +2
x= 10

c)x = -10 +8
x = -2

d) x= 3 -3
x=0

e) x =300 -101
x= 299

f)x = 237 + 279
x=  516

g) x = 13 -17
x= -4

h) x =900 -128
x = 772