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Simplifying 3x2 + 6y = 21 Solving 3x2 + 6y = 21 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-6y' to each side of the equation. 3x2 + 6y + -6y = 21 + -6y Combine like terms: 6y + -6y = 0 3x2 + 0 = 21 + -6y 3x2 = 21 + -6y Divide each side by '3'. x2 = 7 + -2y Simplifying x2 = 7 + -2y Reorder the terms: -7 + x2 + 2y = 7 + -2y + -7 + 2y Reorder the terms: -7 + x2 + 2y = 7 + -7 + -2y + 2y Combine like terms: 7 + -7 = 0 -7 + x2 + 2y = 0 + -2y + 2y -7 + x2 + 2y = -2y + 2y Combine like terms: -2y + 2y = 0 -7 + x2 + 2y = 0 The solution to this equation could not be determined.
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