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Simplifying 0.03(7t + -5) = 0.21(t + -4) + 0.69 Reorder the terms: 0.03(-5 + 7t) = 0.21(t + -4) + 0.69 (-5 * 0.03 + 7t * 0.03) = 0.21(t + -4) + 0.69 (-0.15 + 0.21t) = 0.21(t + -4) + 0.69 Reorder the terms: -0.15 + 0.21t = 0.21(-4 + t) + 0.69 -0.15 + 0.21t = (-4 * 0.21 + t * 0.21) + 0.69 -0.15 + 0.21t = (-0.84 + 0.21t) + 0.69 Reorder the terms: -0.15 + 0.21t = -0.84 + 0.69 + 0.21t Combine like terms: -0.84 + 0.69 = -0.15 -0.15 + 0.21t = -0.15 + 0.21t Add '0.15' to each side of the equation. -0.15 + 0.15 + 0.21t = -0.15 + 0.15 + 0.21t Combine like terms: -0.15 + 0.15 = 0.00 0.00 + 0.21t = -0.15 + 0.15 + 0.21t 0.21t = -0.15 + 0.15 + 0.21t Combine like terms: -0.15 + 0.15 = 0.00 0.21t = 0.00 + 0.21t 0.21t = 0.21t Add '-0.21t' to each side of the equation. 0.21t + -0.21t = 0.21t + -0.21t Combine like terms: 0.21t + -0.21t = 0.00 0.00 = 0.21t + -0.21t Combine like terms: 0.21t + -0.21t = 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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