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Simplifying 1 + -3 + 9 + -27 + 81 + -243 + 729 = 0 Combine like terms: 1 + -3 = -2 -2 + 9 + -27 + 81 + -243 + 729 = 0 Combine like terms: -2 + 9 = 7 7 + -27 + 81 + -243 + 729 = 0 Combine like terms: 7 + -27 = -20 -20 + 81 + -243 + 729 = 0 Combine like terms: -20 + 81 = 61 61 + -243 + 729 = 0 Combine like terms: 61 + -243 = -182 -182 + 729 = 0 Combine like terms: -182 + 729 = 547 547 = 0 Solving 547 = 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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