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Simplifying -13 + 4x = x + 7 Reorder the terms: -13 + 4x = 7 + x Solving -13 + 4x = 7 + 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. -13 + 4x + -1x = 7 + x + -1x Combine like terms: 4x + -1x = 3x -13 + 3x = 7 + x + -1x Combine like terms: x + -1x = 0 -13 + 3x = 7 + 0 -13 + 3x = 7 Add '13' to each side of the equation. -13 + 13 + 3x = 7 + 13 Combine like terms: -13 + 13 = 0 0 + 3x = 7 + 13 3x = 7 + 13 Combine like terms: 7 + 13 = 20 3x = 20 Divide each side by '3'. x = 6.666666667 Simplifying x = 6.666666667
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