12240=9000(1+(4)r)

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Solution for 12240=9000(1+(4)r) equation:


Simplifying
12240 = 9000(1 + (4) * r)
12240 = (1 * 9000 + 4r * 9000)
12240 = (9000 + 36000r)

Solving
12240 = 9000 + 36000r

Solving for variable 'r'.

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

Add '-36000r' to each side of the equation.
12240 + -36000r = 9000 + 36000r + -36000r

Combine like terms: 36000r + -36000r = 0
12240 + -36000r = 9000 + 0
12240 + -36000r = 9000

Add '-12240' to each side of the equation.
12240 + -12240 + -36000r = 9000 + -12240

Combine like terms: 12240 + -12240 = 0
0 + -36000r = 9000 + -12240
-36000r = 9000 + -12240

Combine like terms: 9000 + -12240 = -3240
-36000r = -3240

Divide each side by '-36000'.
r = 0.09

Simplifying
r = 0.09

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