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Simplifying 3x + 86 = 7x + 131 Reorder the terms: 86 + 3x = 7x + 131 Reorder the terms: 86 + 3x = 131 + 7x Solving 86 + 3x = 131 + 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. 86 + 3x + -7x = 131 + 7x + -7x Combine like terms: 3x + -7x = -4x 86 + -4x = 131 + 7x + -7x Combine like terms: 7x + -7x = 0 86 + -4x = 131 + 0 86 + -4x = 131 Add '-86' to each side of the equation. 86 + -86 + -4x = 131 + -86 Combine like terms: 86 + -86 = 0 0 + -4x = 131 + -86 -4x = 131 + -86 Combine like terms: 131 + -86 = 45 -4x = 45 Divide each side by '-4'. x = -11.25 Simplifying x = -11.25
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