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Simplifying 5x + 3 = -15 + 8x Reorder the terms: 3 + 5x = -15 + 8x Solving 3 + 5x = -15 + 8x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8x' to each side of the equation. 3 + 5x + -8x = -15 + 8x + -8x Combine like terms: 5x + -8x = -3x 3 + -3x = -15 + 8x + -8x Combine like terms: 8x + -8x = 0 3 + -3x = -15 + 0 3 + -3x = -15 Add '-3' to each side of the equation. 3 + -3 + -3x = -15 + -3 Combine like terms: 3 + -3 = 0 0 + -3x = -15 + -3 -3x = -15 + -3 Combine like terms: -15 + -3 = -18 -3x = -18 Divide each side by '-3'. x = 6 Simplifying x = 6
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