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Simplifying -2.1 = 0.84 + -4.2x Solving -2.1 = 0.84 + -4.2x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.2x' to each side of the equation. -2.1 + 4.2x = 0.84 + -4.2x + 4.2x Combine like terms: -4.2x + 4.2x = 0.0 -2.1 + 4.2x = 0.84 + 0.0 -2.1 + 4.2x = 0.84 Add '2.1' to each side of the equation. -2.1 + 2.1 + 4.2x = 0.84 + 2.1 Combine like terms: -2.1 + 2.1 = 0.0 0.0 + 4.2x = 0.84 + 2.1 4.2x = 0.84 + 2.1 Combine like terms: 0.84 + 2.1 = 2.94 4.2x = 2.94 Divide each side by '4.2'. x = 0.7 Simplifying x = 0.7
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