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Simplifying -4 = -7x + -3 + 8x Reorder the terms: -4 = -3 + -7x + 8x Combine like terms: -7x + 8x = 1x -4 = -3 + 1x Solving -4 = -3 + 1x 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 + -1x = -3 + 1x + -1x Combine like terms: 1x + -1x = 0 -4 + -1x = -3 + 0 -4 + -1x = -3 Add '4' to each side of the equation. -4 + 4 + -1x = -3 + 4 Combine like terms: -4 + 4 = 0 0 + -1x = -3 + 4 -1x = -3 + 4 Combine like terms: -3 + 4 = 1 -1x = 1 Divide each side by '-1'. x = -1 Simplifying x = -1
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