9x-7i=9x-21u - Solution

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9x-7i=9x-21u

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Solution for 9x-7i=9x-21u equation:

Simplifying 9x + -7i = 9x + -21u Reorder the terms: -7i + 9x = 9x + -21u Reorder the terms: -7i + 9x = -21u + 9x Add '-9x' to each side of the equation. -7i + 9x + -9x = -21u + 9x + -9x Combine like terms: 9x + -9x = 0 -7i + 0 = -21u + 9x + -9x -7i = -21u + 9x + -9x Combine like terms: 9x + -9x = 0 -7i = -21u + 0 -7i = -21u Solving -7i = -21u Solving for variable 'i'. Move all terms containing i to the left, all other terms to the right. Divide each side by '-7'. i = 3u Simplifying i = 3u

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