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Simplifying 1 + -0.7x = 0.4 + -0.5(2x + 9) + 0.3x Reorder the terms: 1 + -0.7x = 0.4 + -0.5(9 + 2x) + 0.3x 1 + -0.7x = 0.4 + (9 * -0.5 + 2x * -0.5) + 0.3x 1 + -0.7x = 0.4 + (-4.5 + -1x) + 0.3x Combine like terms: 0.4 + -4.5 = -4.1 1 + -0.7x = -4.1 + -1x + 0.3x Combine like terms: -1x + 0.3x = -0.7x 1 + -0.7x = -4.1 + -0.7x Add '0.7x' to each side of the equation. 1 + -0.7x + 0.7x = -4.1 + -0.7x + 0.7x Combine like terms: -0.7x + 0.7x = 0.0 1 + 0.0 = -4.1 + -0.7x + 0.7x 1 = -4.1 + -0.7x + 0.7x Combine like terms: -0.7x + 0.7x = 0.0 1 = -4.1 + 0.0 1 = -4.1 Solving 1 = -4.1 Couldn't find a variable to solve for. This equation is invalid, the left and right sides are not equal, therefore there is no solution.
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