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Simplifying 81x2 + 15y + -4 = 20 Reorder the terms: -4 + 81x2 + 15y = 20 Solving -4 + 81x2 + 15y = 20 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 + 81x2 + 4 + 15y = 20 + 4 Reorder the terms: -4 + 4 + 81x2 + 15y = 20 + 4 Combine like terms: -4 + 4 = 0 0 + 81x2 + 15y = 20 + 4 81x2 + 15y = 20 + 4 Combine like terms: 20 + 4 = 24 81x2 + 15y = 24 Add '-15y' to each side of the equation. 81x2 + 15y + -15y = 24 + -15y Combine like terms: 15y + -15y = 0 81x2 + 0 = 24 + -15y 81x2 = 24 + -15y Divide each side by '81'. x2 = 0.2962962963 + -0.1851851852y Simplifying x2 = 0.2962962963 + -0.1851851852y Reorder the terms: -0.2962962963 + x2 + 0.1851851852y = 0.2962962963 + -0.1851851852y + -0.2962962963 + 0.1851851852y Reorder the terms: -0.2962962963 + x2 + 0.1851851852y = 0.2962962963 + -0.2962962963 + -0.1851851852y + 0.1851851852y Combine like terms: 0.2962962963 + -0.2962962963 = 0.0000000000 -0.2962962963 + x2 + 0.1851851852y = 0.0000000000 + -0.1851851852y + 0.1851851852y -0.2962962963 + x2 + 0.1851851852y = -0.1851851852y + 0.1851851852y Combine like terms: -0.1851851852y + 0.1851851852y = 0.0000000000 -0.2962962963 + x2 + 0.1851851852y = 0.0000000000 The solution to this equation could not be determined.
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