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Simplifying 0.04(9x + -1) = 0.36(x + 7) + -2.56 Reorder the terms: 0.04(-1 + 9x) = 0.36(x + 7) + -2.56 (-1 * 0.04 + 9x * 0.04) = 0.36(x + 7) + -2.56 (-0.04 + 0.36x) = 0.36(x + 7) + -2.56 Reorder the terms: -0.04 + 0.36x = 0.36(7 + x) + -2.56 -0.04 + 0.36x = (7 * 0.36 + x * 0.36) + -2.56 -0.04 + 0.36x = (2.52 + 0.36x) + -2.56 Reorder the terms: -0.04 + 0.36x = 2.52 + -2.56 + 0.36x Combine like terms: 2.52 + -2.56 = -0.04 -0.04 + 0.36x = -0.04 + 0.36x Add '0.04' to each side of the equation. -0.04 + 0.04 + 0.36x = -0.04 + 0.04 + 0.36x Combine like terms: -0.04 + 0.04 = 0.00 0.00 + 0.36x = -0.04 + 0.04 + 0.36x 0.36x = -0.04 + 0.04 + 0.36x Combine like terms: -0.04 + 0.04 = 0.00 0.36x = 0.00 + 0.36x 0.36x = 0.36x Add '-0.36x' to each side of the equation. 0.36x + -0.36x = 0.36x + -0.36x Combine like terms: 0.36x + -0.36x = 0.00 0.00 = 0.36x + -0.36x Combine like terms: 0.36x + -0.36x = 0.00 0.00 = 0.00 Solving 0.00 = 0.00 Couldn't find a variable to solve for. This equation is an identity, all real numbers are solutions.
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