Lin come complete 30 math problems in 2 hours. how do i make an expression for that
1 answer:
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The result follows directly from properties of modular arithmetic:
That is,
means we can write for some integer
. Then
and taken mod 12, the first term goes away, so
etc
Answer:
x = 1 or x =
Step-by-step explanation:
The expression inside the absolute value function can be positive or negative
That is 3x - 7 = ± 4
There are 2 equations to solve
(1)
3x - 7 = 4 ( add 7 to both sides )
3x = 11 ( divide both sides by 3 )
x =
(2)
3x - 7 = - 4 ( add 7 to both sides )
3x = 3 ( divide both sides by 3 )
x = 1