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Simplifying 15x + 6 = 2x + 21 Reorder the terms: 6 + 15x = 2x + 21 Reorder the terms: 6 + 15x = 21 + 2x Solving 6 + 15x = 21 + 2x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2x' to each side of the equation. 6 + 15x + -2x = 21 + 2x + -2x Combine like terms: 15x + -2x = 13x 6 + 13x = 21 + 2x + -2x Combine like terms: 2x + -2x = 0 6 + 13x = 21 + 0 6 + 13x = 21 Add '-6' to each side of the equation. 6 + -6 + 13x = 21 + -6 Combine like terms: 6 + -6 = 0 0 + 13x = 21 + -6 13x = 21 + -6 Combine like terms: 21 + -6 = 15 13x = 15 Divide each side by '13'. x = 1.153846154 Simplifying x = 1.153846154
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