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Simplifying 4.2q + 3.1 = 2.1q + 7.3 Reorder the terms: 3.1 + 4.2q = 2.1q + 7.3 Reorder the terms: 3.1 + 4.2q = 7.3 + 2.1q Solving 3.1 + 4.2q = 7.3 + 2.1q Solving for variable 'q'. Move all terms containing q to the left, all other terms to the right. Add '-2.1q' to each side of the equation. 3.1 + 4.2q + -2.1q = 7.3 + 2.1q + -2.1q Combine like terms: 4.2q + -2.1q = 2.1q 3.1 + 2.1q = 7.3 + 2.1q + -2.1q Combine like terms: 2.1q + -2.1q = 0.0 3.1 + 2.1q = 7.3 + 0.0 3.1 + 2.1q = 7.3 Add '-3.1' to each side of the equation. 3.1 + -3.1 + 2.1q = 7.3 + -3.1 Combine like terms: 3.1 + -3.1 = 0.0 0.0 + 2.1q = 7.3 + -3.1 2.1q = 7.3 + -3.1 Combine like terms: 7.3 + -3.1 = 4.2 2.1q = 4.2 Divide each side by '2.1'. q = 2 Simplifying q = 2
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