8720=8000(1+r*3)

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Solution for 8720=8000(1+r*3) equation:


Simplifying
8720 = 8000(1 + r * 3)

Reorder the terms for easier multiplication:
8720 = 8000(1 + 3r)
8720 = (1 * 8000 + 3r * 8000)
8720 = (8000 + 24000r)

Solving
8720 = 8000 + 24000r

Solving for variable 'r'.

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

Add '-24000r' to each side of the equation.
8720 + -24000r = 8000 + 24000r + -24000r

Combine like terms: 24000r + -24000r = 0
8720 + -24000r = 8000 + 0
8720 + -24000r = 8000

Add '-8720' to each side of the equation.
8720 + -8720 + -24000r = 8000 + -8720

Combine like terms: 8720 + -8720 = 0
0 + -24000r = 8000 + -8720
-24000r = 8000 + -8720

Combine like terms: 8000 + -8720 = -720
-24000r = -720

Divide each side by '-24000'.
r = 0.03

Simplifying
r = 0.03

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