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Simplifying 91 + -7x = 11x + 15 Reorder the terms: 91 + -7x = 15 + 11x Solving 91 + -7x = 15 + 11x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-11x' to each side of the equation. 91 + -7x + -11x = 15 + 11x + -11x Combine like terms: -7x + -11x = -18x 91 + -18x = 15 + 11x + -11x Combine like terms: 11x + -11x = 0 91 + -18x = 15 + 0 91 + -18x = 15 Add '-91' to each side of the equation. 91 + -91 + -18x = 15 + -91 Combine like terms: 91 + -91 = 0 0 + -18x = 15 + -91 -18x = 15 + -91 Combine like terms: 15 + -91 = -76 -18x = -76 Divide each side by '-18'. x = 4.222222222 Simplifying x = 4.222222222

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