What should be added to 7x + 4x + 3 to get 9x
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Step-by-step explanation:
Let the no. that should be added be Y
=> 7x + 4x + 3 + Y = 9x
=> 11 x + 3 + Y = 9x
=> Y + 3 = -2x
=> Y = -2x - 3
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