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Simplifying 7x + 28 = x + 4 Reorder the terms: 28 + 7x = x + 4 Reorder the terms: 28 + 7x = 4 + x Solving 28 + 7x = 4 + 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. 28 + 7x + -1x = 4 + x + -1x Combine like terms: 7x + -1x = 6x 28 + 6x = 4 + x + -1x Combine like terms: x + -1x = 0 28 + 6x = 4 + 0 28 + 6x = 4 Add '-28' to each side of the equation. 28 + -28 + 6x = 4 + -28 Combine like terms: 28 + -28 = 0 0 + 6x = 4 + -28 6x = 4 + -28 Combine like terms: 4 + -28 = -24 6x = -24 Divide each side by '6'. x = -4 Simplifying x = -4
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