5[r-1]=2

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Solution for 5[r-1]=2 equation: 


Simplifying
5[r + -1] = 2

Reorder the terms:
5[-1 + r] = 2
[-1 * 5 + r * 5] = 2
[-5 + 5r] = 2

Solving
-5 + 5r = 2

Solving for variable 'r'.

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

Add '5' to each side of the equation.
-5 + 5 + 5r = 2 + 5

Combine like terms: -5 + 5 = 0
0 + 5r = 2 + 5
5r = 2 + 5

Combine like terms: 2 + 5 = 7
5r = 7

Divide each side by '5'.
r = 1.4

Simplifying
r = 1.4

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