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Simplifying 2x * 8 = 21 + 7x Reorder the terms for easier multiplication: 2 * 8x = 21 + 7x Multiply 2 * 8 16x = 21 + 7x Solving 16x = 21 + 7x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7x' to each side of the equation. 16x + -7x = 21 + 7x + -7x Combine like terms: 16x + -7x = 9x 9x = 21 + 7x + -7x Combine like terms: 7x + -7x = 0 9x = 21 + 0 9x = 21 Divide each side by '9'. x = 2.333333333 Simplifying x = 2.333333333
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