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Simplifying 3y2 + 15x + -42 = 0 Reorder the terms: -42 + 15x + 3y2 = 0 Solving -42 + 15x + 3y2 = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '42' to each side of the equation. -42 + 15x + 42 + 3y2 = 0 + 42 Reorder the terms: -42 + 42 + 15x + 3y2 = 0 + 42 Combine like terms: -42 + 42 = 0 0 + 15x + 3y2 = 0 + 42 15x + 3y2 = 0 + 42 Combine like terms: 0 + 42 = 42 15x + 3y2 = 42 Add '-3y2' to each side of the equation. 15x + 3y2 + -3y2 = 42 + -3y2 Combine like terms: 3y2 + -3y2 = 0 15x + 0 = 42 + -3y2 15x = 42 + -3y2 Divide each side by '15'. x = 2.8 + -0.2y2 Simplifying x = 2.8 + -0.2y2
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