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The given problem can be written as:

572 + x = 972

It is a linear equation in one variable(here x).

The value of unknown can be known by the following these steps:

572 + x = 972

Subtract 572 from both sides

572 + x - 572 = 972 - 572

x = 400

Let's check if x = 400 is correct:

572 + 400 = 972 which is correct.

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12y ago

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