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Simplifying (7 + -5x2) = 18 Remove parenthesis around (7 + -5x2) 7 + -5x2 = 18 Solving 7 + -5x2 = 18 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -5x2 = 18 + -7 Combine like terms: 7 + -7 = 0 0 + -5x2 = 18 + -7 -5x2 = 18 + -7 Combine like terms: 18 + -7 = 11 -5x2 = 11 Divide each side by '-5'. x2 = -2.2 Simplifying x2 = -2.2 Reorder the terms: 2.2 + x2 = -2.2 + 2.2 Combine like terms: -2.2 + 2.2 = 0.0 2.2 + x2 = 0.0 The solution to this equation could not be determined.
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