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Simplifying -0.8 + 2.5x = 1 + 2.1x Solving -0.8 + 2.5x = 1 + 2.1x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.1x' to each side of the equation. -0.8 + 2.5x + -2.1x = 1 + 2.1x + -2.1x Combine like terms: 2.5x + -2.1x = 0.4x -0.8 + 0.4x = 1 + 2.1x + -2.1x Combine like terms: 2.1x + -2.1x = 0.0 -0.8 + 0.4x = 1 + 0.0 -0.8 + 0.4x = 1 Add '0.8' to each side of the equation. -0.8 + 0.8 + 0.4x = 1 + 0.8 Combine like terms: -0.8 + 0.8 = 0.0 0.0 + 0.4x = 1 + 0.8 0.4x = 1 + 0.8 Combine like terms: 1 + 0.8 = 1.8 0.4x = 1.8 Divide each side by '0.4'. x = 4.5 Simplifying x = 4.5
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