4(r-1)=

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Solution for 4(r-1)= equation: 


Simplifying
4(r + -1) = 0

Reorder the terms:
4(-1 + r) = 0
(-1 * 4 + r * 4) = 0
(-4 + 4r) = 0

Solving
-4 + 4r = 0

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 + 4r = 0 + 4

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

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

Divide each side by '4'.
r = 1

Simplifying
r = 1

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