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Simplifying 28x + 21 = -42x + -8 Reorder the terms: 21 + 28x = -42x + -8 Reorder the terms: 21 + 28x = -8 + -42x Solving 21 + 28x = -8 + -42x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '42x' to each side of the equation. 21 + 28x + 42x = -8 + -42x + 42x Combine like terms: 28x + 42x = 70x 21 + 70x = -8 + -42x + 42x Combine like terms: -42x + 42x = 0 21 + 70x = -8 + 0 21 + 70x = -8 Add '-21' to each side of the equation. 21 + -21 + 70x = -8 + -21 Combine like terms: 21 + -21 = 0 0 + 70x = -8 + -21 70x = -8 + -21 Combine like terms: -8 + -21 = -29 70x = -29 Divide each side by '70'. x = -0.4142857143 Simplifying x = -0.4142857143
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