228980=200000(1+r)2

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Solution for 228980=200000(1+r)2 equation:


Simplifying
228980 = 200000(1 + r) * 2

Reorder the terms for easier multiplication:
228980 = 200000 * 2(1 + r)

Multiply 200000 * 2
228980 = 400000(1 + r)
228980 = (1 * 400000 + r * 400000)
228980 = (400000 + 400000r)

Solving
228980 = 400000 + 400000r

Solving for variable 'r'.

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

Add '-400000r' to each side of the equation.
228980 + -400000r = 400000 + 400000r + -400000r

Combine like terms: 400000r + -400000r = 0
228980 + -400000r = 400000 + 0
228980 + -400000r = 400000

Add '-228980' to each side of the equation.
228980 + -228980 + -400000r = 400000 + -228980

Combine like terms: 228980 + -228980 = 0
0 + -400000r = 400000 + -228980
-400000r = 400000 + -228980

Combine like terms: 400000 + -228980 = 171020
-400000r = 171020

Divide each side by '-400000'.
r = -0.42755

Simplifying
r = -0.42755

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