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Simplifying 2x(7y + 9) + 7 = a Reorder the terms: 2x(9 + 7y) + 7 = a (9 * 2x + 7y * 2x) + 7 = a (18x + 14xy) + 7 = a Reorder the terms: 7 + 18x + 14xy = a Solving 7 + 18x + 14xy = a Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + 18x + -7 + 14xy = -7 + a Reorder the terms: 7 + -7 + 18x + 14xy = -7 + a Combine like terms: 7 + -7 = 0 0 + 18x + 14xy = -7 + a 18x + 14xy = -7 + a Reorder the terms: 7 + -1a + 18x + 14xy = -7 + a + 7 + -1a Reorder the terms: 7 + -1a + 18x + 14xy = -7 + 7 + a + -1a Combine like terms: -7 + 7 = 0 7 + -1a + 18x + 14xy = 0 + a + -1a 7 + -1a + 18x + 14xy = a + -1a Combine like terms: a + -1a = 0 7 + -1a + 18x + 14xy = 0 The solution to this equation could not be determined.
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