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diff --git a/chall/ply-2.2/example/BASIC/linear.bas b/chall/ply-2.2/example/BASIC/linear.bas
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-1 REM ::: SOLVE A SYSTEM OF LINEAR EQUATIONS
-2 REM ::: A1*X1 + A2*X2 = B1
-3 REM ::: A3*X1 + A4*X2 = B2
-4 REM --------------------------------------
-10 READ A1, A2, A3, A4
-15 LET D = A1 * A4 - A3 * A2
-20 IF D = 0 THEN 65
-30 READ B1, B2
-37 LET X1 = (B1*A4 - B2*A2) / D
-42 LET X2 = (A1*B2 - A3*B1) / D
-55 PRINT X1, X2
-60 GOTO 30
-65 PRINT "NO UNIQUE SOLUTION"
-70 DATA 1, 2, 4
-80 DATA 2, -7, 5
-85 DATA 1, 3, 4, -7
-90 END