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Simplifying 121 + -2x = 16x + 21 Reorder the terms: 121 + -2x = 21 + 16x Solving 121 + -2x = 21 + 16x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-16x' to each side of the equation. 121 + -2x + -16x = 21 + 16x + -16x Combine like terms: -2x + -16x = -18x 121 + -18x = 21 + 16x + -16x Combine like terms: 16x + -16x = 0 121 + -18x = 21 + 0 121 + -18x = 21 Add '-121' to each side of the equation. 121 + -121 + -18x = 21 + -121 Combine like terms: 121 + -121 = 0 0 + -18x = 21 + -121 -18x = 21 + -121 Combine like terms: 21 + -121 = -100 -18x = -100 Divide each side by '-18'. x = 5.555555556 Simplifying x = 5.555555556
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