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Simplifying 21x + -3 + -5 = -7 Reorder the terms: -3 + -5 + 21x = -7 Combine like terms: -3 + -5 = -8 -8 + 21x = -7 Solving -8 + 21x = -7 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + 21x = -7 + 8 Combine like terms: -8 + 8 = 0 0 + 21x = -7 + 8 21x = -7 + 8 Combine like terms: -7 + 8 = 1 21x = 1 Divide each side by '21'. x = 0.04761904762 Simplifying x = 0.04761904762
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