diff --git a/exercises/variables/README.md b/exercises/variables/README.md
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-# Variables
-
-In Rust, variables are immutable by default.
-When a variable is immutable, once a value is bound to a name, you can’t change that value.
-You can make them mutable by adding mut in front of the variable name.
-
-## Further information
-
-- [Variables and Mutability](https://doc.rust-lang.org/book/ch03-01-variables-and-mutability.html)
diff --git a/exercises/variables/variables1.rs b/exercises/variables/variables1.rs
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-// variables1.rs
-// Make me compile! Execute the command `rustlings hint variables1` if you want a hint :)
-
-// About this `I AM NOT DONE` thing:
-// We sometimes encourage you to keep trying things on a given exercise,
-// even after you already figured it out. If you got everything working and
-// feel ready for the next exercise, remove the `I AM NOT DONE` comment below.
-
-// I AM NOT DONE
-
-fn main() {
-    let x = 5;
-    println!("x has the value {}", x);
-}
diff --git a/exercises/variables/variables2 b/exercises/variables/variables2
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diff --git a/exercises/variables/variables2.rs b/exercises/variables/variables2.rs
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-// variables2.rs
-// Make me compile! Execute the command `rustlings hint variables2` if you want a hint :)
-
-// I AM NOT DONE
-
-fn main() {
-    let x;
-    x=9;
-    if x == 10 {
-        println!("Ten!");
-    } else {
-        println!("Not ten!");
-    }
-}
diff --git a/exercises/variables/variables3.rs b/exercises/variables/variables3.rs
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-// variables3.rs
-// Make me compile! Execute the command `rustlings hint variables3` if you want a hint :)
-
-// I AM NOT DONE
-
-fn main() {
-    let x = 3;
-    println!("Number {}", x);
-    x = 5; // don't change this line
-    println!("Number {}", x);
-}
diff --git a/exercises/variables/variables4.rs b/exercises/variables/variables4.rs
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-// variables4.rs
-// Make me compile! Execute the command `rustlings hint variables4` if you want a hint :)
-
-// I AM NOT DONE
-
-fn main() {
-    let x: i32;
-    println!("Number {}", x);
-}
diff --git a/exercises/variables/variables5.rs b/exercises/variables/variables5.rs
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-// variables5.rs
-// Make me compile! Execute the command `rustlings hint variables5` if you want a hint :)
-
-// I AM NOT DONE
-
-fn main() {
-    let number = "T-H-R-E-E"; // don't change this line
-    println!("Spell a Number : {}", number);
-    number = 3;
-    println!("Number plus two is : {}", number + 2);
-}
diff --git a/exercises/variables/variables6.rs b/exercises/variables/variables6.rs
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-// variables6.rs
-// Make me compile! Execute the command `rustlings hint variables6` if you want a hint :)
-
-// I AM NOT DONE
-
-const NUMBER = 3;
-fn main() {
-    println!("Number {}", NUMBER);
-}