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Simplifying 4x(5x) + -5y = -7 Remove parenthesis around (5x) 4x * 5x + -5y = -7 Reorder the terms for easier multiplication: 4 * 5x * x + -5y = -7 Multiply 4 * 5 20x * x + -5y = -7 Multiply x * x 20x2 + -5y = -7 Solving 20x2 + -5y = -7 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5y' to each side of the equation. 20x2 + -5y + 5y = -7 + 5y Combine like terms: -5y + 5y = 0 20x2 + 0 = -7 + 5y 20x2 = -7 + 5y Divide each side by '20'. x2 = -0.35 + 0.25y Simplifying x2 = -0.35 + 0.25y Reorder the terms: 0.35 + x2 + -0.25y = -0.35 + 0.25y + 0.35 + -0.25y Reorder the terms: 0.35 + x2 + -0.25y = -0.35 + 0.35 + 0.25y + -0.25y Combine like terms: -0.35 + 0.35 = 0.00 0.35 + x2 + -0.25y = 0.00 + 0.25y + -0.25y 0.35 + x2 + -0.25y = 0.25y + -0.25y Combine like terms: 0.25y + -0.25y = 0.00 0.35 + x2 + -0.25y = 0.00 The solution to this equation could not be determined.
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