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Simplifying 28 * 5x + 2 = 21 * 7x Multiply 28 * 5 140x + 2 = 21 * 7x Reorder the terms: 2 + 140x = 21 * 7x Multiply 21 * 7 2 + 140x = 147x Solving 2 + 140x = 147x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-147x' to each side of the equation. 2 + 140x + -147x = 147x + -147x Combine like terms: 140x + -147x = -7x 2 + -7x = 147x + -147x Combine like terms: 147x + -147x = 0 2 + -7x = 0 Add '-2' to each side of the equation. 2 + -2 + -7x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -7x = 0 + -2 -7x = 0 + -2 Combine like terms: 0 + -2 = -2 -7x = -2 Divide each side by '-7'. x = 0.2857142857 Simplifying x = 0.2857142857
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