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Simplifying 1 * 2 * 3 * 4 * 5 * 6 * 7 * 8 * 9 * 10a * b * c * d * e * f * g * h * i * j = 21345678 Multiply 1 * 2 2 * 3 * 4 * 5 * 6 * 7 * 8 * 9 * 10a * b * c * d * e * f * g * h * i * j = 21345678 Multiply 2 * 3 6 * 4 * 5 * 6 * 7 * 8 * 9 * 10a * b * c * d * e * f * g * h * i * j = 21345678 Multiply 6 * 4 24 * 5 * 6 * 7 * 8 * 9 * 10a * b * c * d * e * f * g * h * i * j = 21345678 Multiply 24 * 5 120 * 6 * 7 * 8 * 9 * 10a * b * c * d * e * f * g * h * i * j = 21345678 Multiply 120 * 6 720 * 7 * 8 * 9 * 10a * b * c * d * e * f * g * h * i * j = 21345678 Multiply 720 * 7 5040 * 8 * 9 * 10a * b * c * d * e * f * g * h * i * j = 21345678 Multiply 5040 * 8 40320 * 9 * 10a * b * c * d * e * f * g * h * i * j = 21345678 Multiply 40320 * 9 362880 * 10a * b * c * d * e * f * g * h * i * j = 21345678 Multiply 362880 * 10 3628800a * b * c * d * e * f * g * h * i * j = 21345678 Multiply a * b 3628800ab * c * d * e * f * g * h * i * j = 21345678 Multiply ab * c 3628800abc * d * e * f * g * h * i * j = 21345678 Multiply abc * d 3628800abcd * e * f * g * h * i * j = 21345678 Multiply abcd * e 3628800abcde * f * g * h * i * j = 21345678 Multiply abcde * f 3628800abcdef * g * h * i * j = 21345678 Multiply abcdef * g 3628800abcdefg * h * i * j = 21345678 Multiply abcdefg * h 3628800abcdefgh * i * j = 21345678 Multiply abcdefgh * i 3628800abcdefghi * j = 21345678 Multiply abcdefghi * j 3628800abcdefghij = 21345678 Solving 3628800abcdefghij = 21345678 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Divide each side by '3628800bcdefghij'. a = 5.882296627b-1c-1d-1e-1f-1g-1h-1i-1j-1 Simplifying a = 5.882296627b-1c-1d-1e-1f-1g-1h-1i-1j-1
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