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Simplifying -21x + 10y = 42 Solving -21x + 10y = 42 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-10y' to each side of the equation. -21x + 10y + -10y = 42 + -10y Combine like terms: 10y + -10y = 0 -21x + 0 = 42 + -10y -21x = 42 + -10y Divide each side by '-21'. x = -2 + 0.4761904762y Simplifying x = -2 + 0.4761904762y
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