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Simplifying 4 + 8x = -31 + x Solving 4 + 8x = -31 + x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1x' to each side of the equation. 4 + 8x + -1x = -31 + x + -1x Combine like terms: 8x + -1x = 7x 4 + 7x = -31 + x + -1x Combine like terms: x + -1x = 0 4 + 7x = -31 + 0 4 + 7x = -31 Add '-4' to each side of the equation. 4 + -4 + 7x = -31 + -4 Combine like terms: 4 + -4 = 0 0 + 7x = -31 + -4 7x = -31 + -4 Combine like terms: -31 + -4 = -35 7x = -35 Divide each side by '7'. x = -5 Simplifying x = -5
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