Question

Quanto Vale?

A) X + 117 = 302
B) 2 + X = 8
C) X - 117 = 302
D) X + 120 = 140
E) 200 - X = 100
F) 353 + X = 400
G) 1024 - X = 1022

Answer 1

a) x+117=302
x=302-117
x=185

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

c)x-117=302
x=302+117
x=419

d)x+120=140
x=140-120
x=20

e)200-x=100
-x=100-200
-x=-100    .(-1)
x=100

f)353+x=400
x=400-353
x=47

g)1024-x=1022
-x=1022-1024
-x=-2   .(-)
x=2