Swinging the pendulum back to extremely basic

modernc/05/.gitignore

@@ -0,0 +1 @@
+basic

modernc/05/basic.c

@@ -0,0 +1,9 @@
+#include <stdio.h>
+
+int main() {
+	double x = 5.0;
+	double y = 3.0;
+
+	x = (x * 1.5) - y;
+	printf("x is \%g\n", x);
+}