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Simplifying 7x + 21 = 2x + -49 Reorder the terms: 21 + 7x = 2x + -49 Reorder the terms: 21 + 7x = -49 + 2x Solving 21 + 7x = -49 + 2x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2x' to each side of the equation. 21 + 7x + -2x = -49 + 2x + -2x Combine like terms: 7x + -2x = 5x 21 + 5x = -49 + 2x + -2x Combine like terms: 2x + -2x = 0 21 + 5x = -49 + 0 21 + 5x = -49 Add '-21' to each side of the equation. 21 + -21 + 5x = -49 + -21 Combine like terms: 21 + -21 = 0 0 + 5x = -49 + -21 5x = -49 + -21 Combine like terms: -49 + -21 = -70 5x = -70 Divide each side by '5'. x = -14 Simplifying x = -14
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