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Simplifying x + -2.1 = (0.3) * x Reorder the terms: -2.1 + x = (0.3) * x Solving -2.1 + x = 0.3x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.3x' to each side of the equation. -2.1 + x + -0.3x = 0.3x + -0.3x Combine like terms: x + -0.3x = 0.7x -2.1 + 0.7x = 0.3x + -0.3x Combine like terms: 0.3x + -0.3x = 0.0 -2.1 + 0.7x = 0.0 Add '2.1' to each side of the equation. -2.1 + 2.1 + 0.7x = 0.0 + 2.1 Combine like terms: -2.1 + 2.1 = 0.0 0.0 + 0.7x = 0.0 + 2.1 0.7x = 0.0 + 2.1 Combine like terms: 0.0 + 2.1 = 2.1 0.7x = 2.1 Divide each side by '0.7'. x = 3 Simplifying x = 3
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