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Simplifying 11 = 4.2 + x Solving 11 = 4.2 + x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1x' to each side of the equation. 11 + -1x = 4.2 + x + -1x Combine like terms: x + -1x = 0 11 + -1x = 4.2 + 0 11 + -1x = 4.2 Add '-11' to each side of the equation. 11 + -11 + -1x = 4.2 + -11 Combine like terms: 11 + -11 = 0 0 + -1x = 4.2 + -11 -1x = 4.2 + -11 Combine like terms: 4.2 + -11 = -6.8 -1x = -6.8 Divide each side by '-1'. x = 6.8 Simplifying x = 6.8
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