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Simplifying 21x2 + 49z + 20 = 0 Reorder the terms: 20 + 21x2 + 49z = 0 Solving 20 + 21x2 + 49z = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-20' to each side of the equation. 20 + 21x2 + -20 + 49z = 0 + -20 Reorder the terms: 20 + -20 + 21x2 + 49z = 0 + -20 Combine like terms: 20 + -20 = 0 0 + 21x2 + 49z = 0 + -20 21x2 + 49z = 0 + -20 Combine like terms: 0 + -20 = -20 21x2 + 49z = -20 Add '-49z' to each side of the equation. 21x2 + 49z + -49z = -20 + -49z Combine like terms: 49z + -49z = 0 21x2 + 0 = -20 + -49z 21x2 = -20 + -49z Divide each side by '21'. x2 = -0.9523809524 + -2.333333333z Simplifying x2 = -0.9523809524 + -2.333333333z Reorder the terms: 0.9523809524 + x2 + 2.333333333z = -0.9523809524 + -2.333333333z + 0.9523809524 + 2.333333333z Reorder the terms: 0.9523809524 + x2 + 2.333333333z = -0.9523809524 + 0.9523809524 + -2.333333333z + 2.333333333z Combine like terms: -0.9523809524 + 0.9523809524 = 0.0000000000 0.9523809524 + x2 + 2.333333333z = 0.0000000000 + -2.333333333z + 2.333333333z 0.9523809524 + x2 + 2.333333333z = -2.333333333z + 2.333333333z Combine like terms: -2.333333333z + 2.333333333z = 0.000000000 0.9523809524 + x2 + 2.333333333z = 0.000000000 The solution to this equation could not be determined.
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