4(5r-1)=4

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Solution for 4(5r-1)=4 equation: 


Simplifying
4(5r + -1) = 4

Reorder the terms:
4(-1 + 5r) = 4
(-1 * 4 + 5r * 4) = 4
(-4 + 20r) = 4

Solving
-4 + 20r = 4

Solving for variable 'r'.

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

Add '4' to each side of the equation.
-4 + 4 + 20r = 4 + 4

Combine like terms: -4 + 4 = 0
0 + 20r = 4 + 4
20r = 4 + 4

Combine like terms: 4 + 4 = 8
20r = 8

Divide each side by '20'.
r = 0.4

Simplifying
r = 0.4

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