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Simplifying 161 + -5x = 40x + 21 Reorder the terms: 161 + -5x = 21 + 40x Solving 161 + -5x = 21 + 40x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-40x' to each side of the equation. 161 + -5x + -40x = 21 + 40x + -40x Combine like terms: -5x + -40x = -45x 161 + -45x = 21 + 40x + -40x Combine like terms: 40x + -40x = 0 161 + -45x = 21 + 0 161 + -45x = 21 Add '-161' to each side of the equation. 161 + -161 + -45x = 21 + -161 Combine like terms: 161 + -161 = 0 0 + -45x = 21 + -161 -45x = 21 + -161 Combine like terms: 21 + -161 = -140 -45x = -140 Divide each side by '-45'. x = 3.111111111 Simplifying x = 3.111111111
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