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Simplifying 2x2 + 7t + 9 = 0 Reorder the terms: 9 + 7t + 2x2 = 0 Solving 9 + 7t + 2x2 = 0 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + 7t + -9 + 2x2 = 0 + -9 Reorder the terms: 9 + -9 + 7t + 2x2 = 0 + -9 Combine like terms: 9 + -9 = 0 0 + 7t + 2x2 = 0 + -9 7t + 2x2 = 0 + -9 Combine like terms: 0 + -9 = -9 7t + 2x2 = -9 Add '-2x2' to each side of the equation. 7t + 2x2 + -2x2 = -9 + -2x2 Combine like terms: 2x2 + -2x2 = 0 7t + 0 = -9 + -2x2 7t = -9 + -2x2 Divide each side by '7'. t = -1.285714286 + -0.2857142857x2 Simplifying t = -1.285714286 + -0.2857142857x2
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