Respuesta:
a)
17 - x = 79
17 - 79 = x
-62 = x
b)
x - 23 = 40
x = 40 + 23
x = 63
c)
21 + x = 103
x = 103 - 21
x = 82
d)
x + 7 = 45
x = 45 - 7
x = 38
e)
x + 9 = 38
x = 38 - 9
x = 29
f)
x + (-9) = 24
x - 9 = 24
x = 24 + 9
x = 33
g)
32 - x = ?
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Verified answer
Respuesta:
a)
17 - x = 79
17 - 79 = x
-62 = x
b)
x - 23 = 40
x = 40 + 23
x = 63
c)
21 + x = 103
x = 103 - 21
x = 82
d)
x + 7 = 45
x = 45 - 7
x = 38
e)
x + 9 = 38
x = 38 - 9
x = 29
f)
x + (-9) = 24
x - 9 = 24
x = 24 + 9
x = 33
g)
32 - x = ?