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Simplifying 7x + -15i = -21 + -3yi Reorder the terms: -15i + 7x = -21 + -3yi Solving -15i + 7x = -21 + -3iy Solving for variable 'i'. Move all terms containing i to the left, all other terms to the right. Add '3iy' to each side of the equation. -15i + 3iy + 7x = -21 + -3iy + 3iy Combine like terms: -3iy + 3iy = 0 -15i + 3iy + 7x = -21 + 0 -15i + 3iy + 7x = -21 Add '-7x' to each side of the equation. -15i + 3iy + 7x + -7x = -21 + -7x Combine like terms: 7x + -7x = 0 -15i + 3iy + 0 = -21 + -7x -15i + 3iy = -21 + -7x Reorder the terms: 21 + -15i + 3iy + 7x = -21 + -7x + 21 + 7x Reorder the terms: 21 + -15i + 3iy + 7x = -21 + 21 + -7x + 7x Combine like terms: -21 + 21 = 0 21 + -15i + 3iy + 7x = 0 + -7x + 7x 21 + -15i + 3iy + 7x = -7x + 7x Combine like terms: -7x + 7x = 0 21 + -15i + 3iy + 7x = 0 The solution to this equation could not be determined.
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