12(4x-5)52=10
Say x=5. Replace the x with 5.
12(45-5)52=?
12(20-5)52=?
12(15)52=?
18052=9360
x does not equal 5
Now lets try 12.
12(412-5)52=?
12(48-5)52=?
12(43)52=?
51652=26832
x does not equal 12
Repeat this process with the other two numbers. Just replace x with one of the numbers. Make sure there is no negative signs on any of the numbers. All signs are crucial.
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