3.5r+8=2808

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Solution for 3.5r+8=2808 equation: 


Simplifying
3.5r + 8 = 2808

Reorder the terms:
8 + 3.5r = 2808

Solving
8 + 3.5r = 2808

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 + 3.5r = 2808 + -8

Combine like terms: 8 + -8 = 0
0 + 3.5r = 2808 + -8
3.5r = 2808 + -8

Combine like terms: 2808 + -8 = 2800
3.5r = 2800

Divide each side by '3.5'.
r = 800

Simplifying
r = 800

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