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Simplifying 7.8 + x = -4.5 Solving 7.8 + x = -4.5 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7.8' to each side of the equation. 7.8 + -7.8 + x = -4.5 + -7.8 Combine like terms: 7.8 + -7.8 = 0.0 0.0 + x = -4.5 + -7.8 x = -4.5 + -7.8 Combine like terms: -4.5 + -7.8 = -12.3 x = -12.3 Simplifying x = -12.3
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