Solve the modulus equation

2x ≡ 7(mod 17)

Step 1: Calculate d = (2,17)

GCF (2,17) = 1

Step 2: We check to see if 1 | 7

7  =  7
  1

There will be 1 solutions mod 17

Build Diophantine equation from GCF

2x - 17y = 7

Final Answer


Extended Euclidean Algorithm
for 2 and 17
x = 1 and y = -8


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How does the Linear Congruence Calculator work?
Free Linear Congruence Calculator - Given an modular equation ax ≡ b (mod m), this solves for x if a solution exists
This calculator has 3 inputs.
What 2 formulas are used for the Linear Congruence Calculator?
ax ≡ b (mod m)
ax + by = c
What 4 concepts are covered in the Linear Congruence Calculator?
congruence
a problem of finding an integer x that satisfies the equation ax = b (mod m)
equation
a statement declaring two mathematical expressions are equal
linear congruence
a problem of finding an integer x that satisfies the equation ax = b (mod m)
modulus
the remainder of a division, after one number is divided by another.
a mod b
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