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Simplifying 840 = 2(3xX) Remove parenthesis around (3xX) 840 = 2 * 3xX Multiply 2 * 3 840 = 6xX Solving 840 = 6xX Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-6xX' to each side of the equation. 840 + -6xX = 6xX + -6xX Combine like terms: 6xX + -6xX = 0 840 + -6xX = 0 Add '-840' to each side of the equation. 840 + -840 + -6xX = 0 + -840 Combine like terms: 840 + -840 = 0 0 + -6xX = 0 + -840 -6xX = 0 + -840 Combine like terms: 0 + -840 = -840 -6xX = -840 Divide each side by '-6X'. x = 140X-1 Simplifying x = 140X-1
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