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Simplifying 3x(7x + 10) = 21z2 + 30x + -5 Reorder the terms: 3x(10 + 7x) = 21z2 + 30x + -5 (10 * 3x + 7x * 3x) = 21z2 + 30x + -5 (30x + 21x2) = 21z2 + 30x + -5 Reorder the terms: 30x + 21x2 = -5 + 30x + 21z2 Add '-30x' to each side of the equation. 30x + -30x + 21x2 = -5 + 30x + -30x + 21z2 Combine like terms: 30x + -30x = 0 0 + 21x2 = -5 + 30x + -30x + 21z2 21x2 = -5 + 30x + -30x + 21z2 Combine like terms: 30x + -30x = 0 21x2 = -5 + 0 + 21z2 21x2 = -5 + 21z2 Solving 21x2 = -5 + 21z2 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Divide each side by '21'. x2 = -0.2380952381 + z2 Simplifying x2 = -0.2380952381 + z2 Reorder the terms: 0.2380952381 + x2 + -1z2 = -0.2380952381 + z2 + 0.2380952381 + -1z2 Reorder the terms: 0.2380952381 + x2 + -1z2 = -0.2380952381 + 0.2380952381 + z2 + -1z2 Combine like terms: -0.2380952381 + 0.2380952381 = 0.0000000000 0.2380952381 + x2 + -1z2 = 0.0000000000 + z2 + -1z2 0.2380952381 + x2 + -1z2 = z2 + -1z2 Combine like terms: z2 + -1z2 = 0 0.2380952381 + x2 + -1z2 = 0 The solution to this equation could not be determined.
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