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Simplifying 7xy = 21xy Solving 7xy = 21xy Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-21xy' to each side of the equation. 7xy + -21xy = 21xy + -21xy Combine like terms: 7xy + -21xy = -14xy -14xy = 21xy + -21xy Combine like terms: 21xy + -21xy = 0 -14xy = 0 Divide each side by '-14'. xy = 0 Simplifying xy = 0 The solution to this equation could not be determined.
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