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Simplifying 12345678987654321 = 7n Solving 12345678987654321 = 7n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-7n' to each side of the equation. 12345678987654321 + -7n = 7n + -7n Combine like terms: 7n + -7n = 0 12345678987654321 + -7n = 0 Add '-12345678987654321' to each side of the equation. 12345678987654321 + -12345678987654321 + -7n = 0 + -12345678987654321 Combine like terms: 12345678987654321 + -12345678987654321 = 0 0 + -7n = 0 + -12345678987654321 -7n = 0 + -12345678987654321 Combine like terms: 0 + -12345678987654321 = -12345678987654321 -7n = -12345678987654321 Divide each side by '-7'. n = 1763668427000000 Simplifying n = 1763668427000000
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