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Simplifying 21 = 30x Solving 21 = 30x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-30x' to each side of the equation. 21 + -30x = 30x + -30x Combine like terms: 30x + -30x = 0 21 + -30x = 0 Add '-21' to each side of the equation. 21 + -21 + -30x = 0 + -21 Combine like terms: 21 + -21 = 0 0 + -30x = 0 + -21 -30x = 0 + -21 Combine like terms: 0 + -21 = -21 -30x = -21 Divide each side by '-30'. x = 0.7 Simplifying x = 0.7
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