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Simplifying 7x + 3 = 7 + 12 Reorder the terms: 3 + 7x = 7 + 12 Combine like terms: 7 + 12 = 19 3 + 7x = 19 Solving 3 + 7x = 19 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + 7x = 19 + -3 Combine like terms: 3 + -3 = 0 0 + 7x = 19 + -3 7x = 19 + -3 Combine like terms: 19 + -3 = 16 7x = 16 Divide each side by '7'. x = 2.285714286 Simplifying x = 2.285714286
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