Question

a) x + 4 = 10 => S = { } Resolva as equações:
b) x + 1 = 9 => S = { }
c) x − 2 = 8 => S = { }
d) x + 3 = 3 => S = { }
e) x + 101 = 300 => S = { }
f) x − 279 = 237 => S = { }
g) x − 8 = −10 => S = { }
h) 128 − x = 900 => S = { }

Answer 1

a)x+4=10

x=10-4

x=6

b)x+1=9

x=9-1

x=8

c)x-2=8

x=8+2

x=10

d)x+3=3

x=3-3

x=0

e)x+101=300

x=300-101

x=199

f)x-279=237

x=237+279

x=516

g)x-8=-10

x=-10+8

x=-2

h)128-x=900

x=900-128

x=772