Question

Solutions of 3x + 2 = 0 (mod 5) is
(a) 1,3
(b) 2,3
(c) 1
(d) Does not exists​

Answer 1

Answer:

Correct option is (C)

$x=1$

Step-by-step explanation:

Given :- $3x+2=0(mod5)$

To find :- Value of x

Solution :-

Step 1) $3x+2=0(mod5)$

Let , n be any integer ,

$3x+2=5n \\3x=5n-2\\x=\frac{5n-2}{3}$

let , n = 1 , 3

therefore , $x = \frac{5(1)-2}{3} \\x = 1$

Correct option is (C)

$x=1$

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