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Simplifying 31.400 + x = 2.90x + x Combine like terms: 2.90x + x = 3.9x 31.400 + x = 3.9x Solving 31.400 + x = 3.9x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3.9x' to each side of the equation. 31.400 + x + -3.9x = 3.9x + -3.9x Combine like terms: x + -3.9x = -2.9x 31.400 + -2.9x = 3.9x + -3.9x Combine like terms: 3.9x + -3.9x = 0.0 31.400 + -2.9x = 0.0 Add '-31.400' to each side of the equation. 31.400 + -31.400 + -2.9x = 0.0 + -31.400 Combine like terms: 31.400 + -31.400 = 0.000 0.000 + -2.9x = 0.0 + -31.400 -2.9x = 0.0 + -31.400 Combine like terms: 0.0 + -31.400 = -31.4 -2.9x = -31.4 Divide each side by '-2.9'. x = 10.82758621 Simplifying x = 10.82758621
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