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Simplifying [2x + 7] = 4 Reorder the terms: [7 + 2x] = 4 Remove brackets around [7 + 2x] 7 + 2x = 4 Solving 7 + 2x = 4 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + 2x = 4 + -7 Combine like terms: 7 + -7 = 0 0 + 2x = 4 + -7 2x = 4 + -7 Combine like terms: 4 + -7 = -3 2x = -3 Divide each side by '2'. x = -1.5 Simplifying x = -1.5
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