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Simplifying 1 + 4r = 4r Add '-4r' to each side of the equation. 1 + 4r + -4r = 4r + -4r Combine like terms: 4r + -4r = 0 1 + 0 = 4r + -4r 1 = 4r + -4r Combine like terms: 4r + -4r = 0 1 = 0 Solving 1 = 0 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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