-8(1+8r)=520

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Solution for -8(1+8r)=520 equation: 


Simplifying
-8(1 + 8r) = 520
(1 * -8 + 8r * -8) = 520
(-8 + -64r) = 520

Solving
-8 + -64r = 520

Solving for variable 'r'.

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

Add '8' to each side of the equation.
-8 + 8 + -64r = 520 + 8

Combine like terms: -8 + 8 = 0
0 + -64r = 520 + 8
-64r = 520 + 8

Combine like terms: 520 + 8 = 528
-64r = 528

Divide each side by '-64'.
r = -8.25

Simplifying
r = -8.25

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