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Simplifying 126 = 21(x) * 0.5 Reorder the terms for easier multiplication: 126 = 21 * 0.5x Multiply 21 * 0.5 126 = 10.5x Solving 126 = 10.5x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-10.5x' to each side of the equation. 126 + -10.5x = 10.5x + -10.5x Combine like terms: 10.5x + -10.5x = 0.0 126 + -10.5x = 0.0 Add '-126' to each side of the equation. 126 + -126 + -10.5x = 0.0 + -126 Combine like terms: 126 + -126 = 0 0 + -10.5x = 0.0 + -126 -10.5x = 0.0 + -126 Combine like terms: 0.0 + -126 = -126 -10.5x = -126 Divide each side by '-10.5'. x = 12 Simplifying x = 12
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