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Simplifying 77 + -2x = 16x + 21 Reorder the terms: 77 + -2x = 21 + 16x Solving 77 + -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. 77 + -2x + -16x = 21 + 16x + -16x Combine like terms: -2x + -16x = -18x 77 + -18x = 21 + 16x + -16x Combine like terms: 16x + -16x = 0 77 + -18x = 21 + 0 77 + -18x = 21 Add '-77' to each side of the equation. 77 + -77 + -18x = 21 + -77 Combine like terms: 77 + -77 = 0 0 + -18x = 21 + -77 -18x = 21 + -77 Combine like terms: 21 + -77 = -56 -18x = -56 Divide each side by '-18'. x = 3.111111111 Simplifying x = 3.111111111
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