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Simplifying 7 * 4x + -9 * 14x + 2 * 49x = 0 Multiply 7 * 4 28x + -9 * 14x + 2 * 49x = 0 Multiply -9 * 14 28x + -126x + 2 * 49x = 0 Multiply 2 * 49 28x + -126x + 98x = 0 Combine like terms: 28x + -126x = -98x -98x + 98x = 0 Combine like terms: -98x + 98x = 0 0 = 0 Solving 0 = 0 Couldn't find a variable to solve for. This equation is an identity, all real numbers are solutions.
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