9000+[(9000)r(2)]=10400

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Solution for 9000+[(9000)r(2)]=10400 equation:


Simplifying
9000 + [(9000) * r(2)] = 10400

Reorder the terms for easier multiplication:
9000 + [9000 * 2r] = 10400

Multiply 9000 * 2
9000 + [18000r] = 10400

Solving
9000 + [18000r] = 10400

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Add '-9000' to each side of the equation.
9000 + -9000 + [18000r] = 10400 + -9000

Combine like terms: 9000 + -9000 = 0
0 + [18000r] = 10400 + -9000
[18000r] = 10400 + -9000

Combine like terms: 10400 + -9000 = 1400
[18000r] = 1400

Divide each side by '18000'.
r = 0.07777777778

Simplifying
r = 0.07777777778

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