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Simplifying 7(9x) + 4 = 0 Remove parenthesis around (9x) 7 * 9x + 4 = 0 Multiply 7 * 9 63x + 4 = 0 Reorder the terms: 4 + 63x = 0 Solving 4 + 63x = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + 63x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + 63x = 0 + -4 63x = 0 + -4 Combine like terms: 0 + -4 = -4 63x = -4 Divide each side by '63'. x = -0.06349206349 Simplifying x = -0.06349206349
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