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Simplifying 7.2 = 4x + 3 + -3x Reorder the terms: 7.2 = 3 + 4x + -3x Combine like terms: 4x + -3x = 1x 7.2 = 3 + 1x Solving 7.2 = 3 + 1x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1x' to each side of the equation. 7.2 + -1x = 3 + 1x + -1x Combine like terms: 1x + -1x = 0 7.2 + -1x = 3 + 0 7.2 + -1x = 3 Add '-7.2' to each side of the equation. 7.2 + -7.2 + -1x = 3 + -7.2 Combine like terms: 7.2 + -7.2 = 0.0 0.0 + -1x = 3 + -7.2 -1x = 3 + -7.2 Combine like terms: 3 + -7.2 = -4.2 -1x = -4.2 Divide each side by '-1'. x = 4.2 Simplifying x = 4.2
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