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Simplifying 4(4n + -20) = 2(8n + -80) Reorder the terms: 4(-20 + 4n) = 2(8n + -80) (-20 * 4 + 4n * 4) = 2(8n + -80) (-80 + 16n) = 2(8n + -80) Reorder the terms: -80 + 16n = 2(-80 + 8n) -80 + 16n = (-80 * 2 + 8n * 2) -80 + 16n = (-160 + 16n) Add '-16n' to each side of the equation. -80 + 16n + -16n = -160 + 16n + -16n Combine like terms: 16n + -16n = 0 -80 + 0 = -160 + 16n + -16n -80 = -160 + 16n + -16n Combine like terms: 16n + -16n = 0 -80 = -160 + 0 -80 = -160 Solving -80 = -160 Couldn't find a variable to solve for. This equation is invalid, the left and right sides are not equal, therefore there is no solution.
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