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Simplifying x + 4 = 4(x + 7) Reorder the terms: 4 + x = 4(x + 7) Reorder the terms: 4 + x = 4(7 + x) 4 + x = (7 * 4 + x * 4) 4 + x = (28 + 4x) Solving 4 + x = 28 + 4x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4x' to each side of the equation. 4 + x + -4x = 28 + 4x + -4x Combine like terms: x + -4x = -3x 4 + -3x = 28 + 4x + -4x Combine like terms: 4x + -4x = 0 4 + -3x = 28 + 0 4 + -3x = 28 Add '-4' to each side of the equation. 4 + -4 + -3x = 28 + -4 Combine like terms: 4 + -4 = 0 0 + -3x = 28 + -4 -3x = 28 + -4 Combine like terms: 28 + -4 = 24 -3x = 24 Divide each side by '-3'. x = -8 Simplifying x = -8
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