3+8r-4=

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Solution for 3+8r-4= equation: 


Simplifying
3 + 8r + -4 = 0

Reorder the terms:
3 + -4 + 8r = 0

Combine like terms: 3 + -4 = -1
-1 + 8r = 0

Solving
-1 + 8r = 0

Solving for variable 'r'.

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

Add '1' to each side of the equation.
-1 + 1 + 8r = 0 + 1

Combine like terms: -1 + 1 = 0
0 + 8r = 0 + 1
8r = 0 + 1

Combine like terms: 0 + 1 = 1
8r = 1

Divide each side by '8'.
r = 0.125

Simplifying
r = 0.125

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