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Simplifying 210 + -1(-6510) = 0 Multiply -1 * -6510 210 + 6510 = 0 Combine like terms: 210 + 6510 = 6720 6720 = 0 Solving 6720 = 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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